284         assert(Interval!Date(Date(1996, 1, 2), Date(1996, 1, 2)).empty);  in Interval()
285         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).empty);
306         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
307                     Date(1994, 12, 24)));
309         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
310                     Date(2000, 1, 5)));
311         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
312                     Date(2012, 3, 1)));
334         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
335                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
337         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
338                     Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
340         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
341                     Interval!Date(Date(1998, 2, 28), Date(2013, 5, 1))));
370         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
371                     PosInfInterval!Date(Date(1999, 5, 4))));
397         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
398                     NegInfInterval!Date(Date(1996, 5, 4))));
421         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
422                     Date(1994, 12, 24)));
424         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
425                     Date(2000, 1, 5)));
427         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
428                     Date(2012, 3, 1)));
451         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
452                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
454         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
455                     Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
457         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
458                     Interval!Date(Date(2012, 3, 1), Date(2013, 5, 1))));
482         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
483                     PosInfInterval!Date(Date(1999, 5, 4))));
485         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
486                     PosInfInterval!Date(Date(2013, 3, 7))));
512         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
513                     NegInfInterval!Date(Date(1996, 5, 4))));
536         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
537                     Date(1994, 12, 24)));
539         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
540                     Date(2000, 1, 5)));
542         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
543                     Date(2012, 3, 1)));
566         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
567                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
569         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
570                     Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
572         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
573                     Interval!Date(Date(1989, 3, 1), Date(1996, 1, 2))));
600         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
601                     PosInfInterval!Date(Date(1999, 5, 4))));
624         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
625                     NegInfInterval!Date(Date(1996, 1, 2))));
647         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
648                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
650         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
651                     Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
653         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
654                     Interval!Date(Date(1989, 3, 1), Date(1996, 1, 2))));
677         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
678                     PosInfInterval!Date(Date(1999, 5, 4))));
680         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
681                     PosInfInterval!Date(Date(2012, 3, 1))));
703         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
704                     NegInfInterval!Date(Date(1996, 1, 2))));
706         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
707                     NegInfInterval!Date(Date(2000, 1, 2))));
729         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
730                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))) ==
731                Interval!Date(Date(1996, 1 , 2), Date(2000, 8, 2)));
733         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
734                     Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))) ==
735                Interval!Date(Date(1999, 1 , 12), Date(2011, 9, 17)));
764         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
765                     PosInfInterval!Date(Date(1990, 7, 6))) ==
766                Interval!Date(Date(1996, 1 , 2), Date(2012, 3, 1)));
768         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
769                     PosInfInterval!Date(Date(1999, 1, 12))) ==
770                Interval!Date(Date(1999, 1 , 12), Date(2012, 3, 1)));
796         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
797                     NegInfInterval!Date(Date(1999, 7, 6))) ==
798                Interval!Date(Date(1996, 1 , 2), Date(1999, 7, 6)));
800         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
801                     NegInfInterval!Date(Date(2013, 1, 12))) ==
802                Interval!Date(Date(1996, 1 , 2), Date(2012, 3, 1)));
829         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
830                     Interval!Date(Date(1990, 7, 6), Date(1996, 1, 2))));
832         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
833                     Interval!Date(Date(2012, 3, 1), Date(2013, 9, 17))));
835         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
836                     Interval!Date(Date(1989, 3, 1), Date(2012, 3, 1))));
860         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
861                     PosInfInterval!Date(Date(1999, 5, 4))));
863         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
864                     PosInfInterval!Date(Date(2012, 3, 1))));
887         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
888                     NegInfInterval!Date(Date(1996, 1, 2))));
890         assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
891                     NegInfInterval!Date(Date(2000, 1, 2))));
913         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
914                     Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))) ==
915                Interval!Date(Date(1990, 7 , 6), Date(2012, 3, 1)));
917         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
918                     Interval!Date(Date(2012, 3, 1), Date(2013, 5, 7))) ==
919                Interval!Date(Date(1996, 1 , 2), Date(2013, 5, 7)));
948         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
949                     PosInfInterval!Date(Date(1990, 7, 6))) ==
950                PosInfInterval!Date(Date(1990, 7 , 6)));
952         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
953                     PosInfInterval!Date(Date(2012, 3, 1))) ==
954                PosInfInterval!Date(Date(1996, 1 , 2)));
980         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
981                     NegInfInterval!Date(Date(1996, 1, 2))) ==
982                NegInfInterval!Date(Date(2012, 3 , 1)));
984         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(
985                     NegInfInterval!Date(Date(2013, 1, 12))) ==
986                NegInfInterval!Date(Date(2013, 1 , 12)));
1014         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1015                     Interval!Date(Date(1990, 7, 6), Date(1991, 1, 8))) ==
1016                Interval!Date(Date(1990, 7 , 6), Date(2012, 3, 1)));
1018         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1019                     Interval!Date(Date(2012, 3, 1), Date(2013, 5, 7))) ==
1020                Interval!Date(Date(1996, 1 , 2), Date(2013, 5, 7)));
1049         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1050                     PosInfInterval!Date(Date(1990, 7, 6))) ==
1051                PosInfInterval!Date(Date(1990, 7 , 6)));
1053         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1054                     PosInfInterval!Date(Date(2050, 1, 1))) ==
1055                PosInfInterval!Date(Date(1996, 1 , 2)));
1079         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1080                     NegInfInterval!Date(Date(1602, 5, 21))) ==
1081                NegInfInterval!Date(Date(2012, 3 , 1)));
1083         assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(
1084                     NegInfInterval!Date(Date(2013, 1, 12))) ==
1085                NegInfInterval!Date(Date(2013, 1 , 12)));
1110         auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 4, 5));
1111         auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 4, 5));
1114         assert(interval1 == Interval!Date(Date(1996, 2, 21), Date(2012, 5, 25)));
1117         assert(interval2 == Interval!Date(Date(1995, 11, 13), Date(2012, 2, 15)));
1160             auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1161             auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1164             assert(interval1 == Interval!Date(Date(1998, 1, 2), Date(2014, 3, 1)));
1167             assert(interval2 == Interval!Date(Date(1994, 1, 2), Date(2010, 3, 1)));
1207         auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1208         auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1211         assert(interval1 == Interval!Date(Date(1994, 1, 2), Date(2014, 3, 1)));
1214         assert(interval2 == Interval!Date(Date(1998, 1, 2), Date(2010, 3, 1)));
1285             auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1286             auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1289             assert(interval1 == Interval!Date(Date(1994, 1, 2), Date(2014, 3, 1)));
1292             assert(interval2 == Interval!Date(Date(1998, 1, 2), Date(2010, 3, 1)));
1406         auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
1407         auto func = delegate (scope const Date date) // For iterating over even-numbered days.
1417         assert(range.front == Date(2010, 9, 1));
1420         assert(range.front == Date(2010, 9, 2));
1423         assert(range.front == Date(2010, 9, 4));
1426         assert(range.front == Date(2010, 9, 6));
1429         assert(range.front == Date(2010, 9, 8));
1500         auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
1501         auto func = delegate (scope const Date date) // For iterating over even-numbered days.
1511         assert(range.front == Date(2010, 9, 9));
1514         assert(range.front == Date(2010, 9, 8));
1517         assert(range.front == Date(2010, 9, 6));
1520         assert(range.front == Date(2010, 9, 4));
1523         assert(range.front == Date(2010, 9, 2));
1614     assertThrown!DateTimeException(Interval!Date(Date(2010, 1, 1), Date(1, 1, 1)));
1616     Interval!Date(Date.init, Date.init);
1624     Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
1625 …assert(Interval!Date(Date(1996, 1, 2), dur!"weeks"(3)) == Interval!Date(Date(1996, 1, 2), Date(199…
1626 …assert(Interval!Date(Date(1996, 1, 2), dur!"days"(3)) == Interval!Date(Date(1996, 1, 2), Date(1996…
1642     assert(Interval!Date(Date(1, 1, 1), Date(2010, 1, 1)).begin == Date(1, 1, 1));
1643     assert(Interval!Date(Date(2010, 1, 1), Date(2010, 1, 1)).begin == Date(2010, 1, 1));
1644     assert(Interval!Date(Date(1997, 12, 31), Date(1998, 1, 1)).begin == Date(1997, 12, 31));
1646     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1647     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1648     assert(cInterval.begin == Date(2010, 7, 4));
1649     assert(iInterval.begin == Date(2010, 7, 4));
1652     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).begin == Date(1996, 1, 2));
1660     assert(Interval!Date(Date(1, 1, 1), Date(2010, 1, 1)).end == Date(2010, 1, 1));
1661     assert(Interval!Date(Date(2010, 1, 1), Date(2010, 1, 1)).end == Date(2010, 1, 1));
1662     assert(Interval!Date(Date(1997, 12, 31), Date(1998, 1, 1)).end == Date(1998, 1, 1));
1664     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1665     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1666     assert(cInterval.end == Date(2012, 1, 7));
1667     assert(iInterval.end == Date(2012, 1, 7));
1670     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).end == Date(2012, 3, 1));
1679     assert(Interval!Date(Date(2010, 1, 1), Date(2010, 1, 1)).length == dur!"days"(0));
1680     assert(Interval!Date(Date(2010, 1, 1), Date(2010, 4, 1)).length == dur!"days"(90));
1687     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1688     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1693     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).length == dur!"days"(5903));
1702     assert(Interval!Date(Date(2010, 1, 1), Date(2010, 1, 1)).empty);
1703     assert(!Interval!Date(Date(2010, 1, 1), Date(2010, 4, 1)).empty);
1708     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1709     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1714     assert(Interval!Date(Date(1996, 1, 2), Date(1996, 1, 2)).empty);
1715     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).empty);
1723     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1725 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).contains(Date(2010, …
1727     assert(!interval.contains(Date(2009, 7, 4)));
1728     assert(!interval.contains(Date(2010, 7, 3)));
1729     assert(interval.contains(Date(2010, 7, 4)));
1730     assert(interval.contains(Date(2010, 7, 5)));
1731     assert(interval.contains(Date(2011, 7, 1)));
1732     assert(interval.contains(Date(2012, 1, 6)));
1733     assert(!interval.contains(Date(2012, 1, 7)));
1734     assert(!interval.contains(Date(2012, 1, 8)));
1735     assert(!interval.contains(Date(2013, 1, 7)));
1737     const cdate = Date(2010, 7, 6);
1738     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1739     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1745     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(Date(1994, 12, 24)));
1746     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(Date(2000, 1, 5)));
1747     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(Date(2012, 3, 1)));
1755     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1757 … assertThrown!DateTimeException(interval.contains(Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
1758 … assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).contains(interval));
1759     assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4),dur!"days"(0)).contains(
1760                                        Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
1763     assert(!interval.contains(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
1764     assert(!interval.contains(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
1765     assert(!interval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
1766     assert(!interval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
1767     assert(!interval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
1768     assert(!interval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
1769     assert(interval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
1770     assert(interval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
1771     assert(interval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
1772     assert(!interval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
1773     assert(!interval.contains(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
1774     assert(!interval.contains(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
1776     assert(!Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).contains(interval));
1777     assert(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).contains(interval));
1778     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).contains(interval));
1779     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).contains(interval));
1780     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).contains(interval));
1781     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).contains(interval));
1782     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).contains(interval));
1783     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).contains(interval));
1784     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).contains(interval));
1785     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).contains(interval));
1786     assert(!Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).contains(interval));
1787     assert(!Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).contains(interval));
1789     assert(!interval.contains(PosInfInterval!Date(Date(2010, 7, 3))));
1790     assert(!interval.contains(PosInfInterval!Date(Date(2010, 7, 4))));
1791     assert(!interval.contains(PosInfInterval!Date(Date(2010, 7, 5))));
1792     assert(!interval.contains(PosInfInterval!Date(Date(2012, 1, 6))));
1793     assert(!interval.contains(PosInfInterval!Date(Date(2012, 1, 7))));
1794     assert(!interval.contains(PosInfInterval!Date(Date(2012, 1, 8))));
1796     assert(!interval.contains(NegInfInterval!Date(Date(2010, 7, 3))));
1797     assert(!interval.contains(NegInfInterval!Date(Date(2010, 7, 4))));
1798     assert(!interval.contains(NegInfInterval!Date(Date(2010, 7, 5))));
1799     assert(!interval.contains(NegInfInterval!Date(Date(2012, 1, 6))));
1800     assert(!interval.contains(NegInfInterval!Date(Date(2012, 1, 7))));
1801     assert(!interval.contains(NegInfInterval!Date(Date(2012, 1, 8))));
1803     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1804     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1805     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1806     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1807     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1808     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1809     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1810     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1840     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
1841                Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
1842     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
1843                Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
1844     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(
1845                Interval!Date(Date(1998, 2, 28), Date(2013, 5, 1))));
1847 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(PosInfInterval!Date(Date(1999, …
1849 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).contains(NegInfInterval!Date(Date(1996, …
1857     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1859 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isBefore(Date(2010, …
1861     assert(!interval.isBefore(Date(2009, 7, 3)));
1862     assert(!interval.isBefore(Date(2010, 7, 3)));
1863     assert(!interval.isBefore(Date(2010, 7, 4)));
1864     assert(!interval.isBefore(Date(2010, 7, 5)));
1865     assert(!interval.isBefore(Date(2011, 7, 1)));
1866     assert(!interval.isBefore(Date(2012, 1, 6)));
1867     assert(interval.isBefore(Date(2012, 1, 7)));
1868     assert(interval.isBefore(Date(2012, 1, 8)));
1869     assert(interval.isBefore(Date(2013, 1, 7)));
1871     const cdate = Date(2010, 7, 6);
1872     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1873     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1879     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(Date(1994, 12, 24)));
1880     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(Date(2000, 1, 5)));
1881     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(Date(2012, 3, 1)));
1889     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1891 … assertThrown!DateTimeException(interval.isBefore(Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
1892 … assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isBefore(interval));
1893     assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isBefore(
1894                                        Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
1897     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
1898     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
1899     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
1900     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
1901     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
1902     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
1903     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
1904     assert(!interval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
1905     assert(!interval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
1906     assert(!interval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
1907     assert(interval.isBefore(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
1908     assert(interval.isBefore(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
1910     assert(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).isBefore(interval));
1911     assert(!Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).isBefore(interval));
1912     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).isBefore(interval));
1913     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).isBefore(interval));
1914     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).isBefore(interval));
1915     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).isBefore(interval));
1916     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).isBefore(interval));
1917     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).isBefore(interval));
1918     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).isBefore(interval));
1919     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).isBefore(interval));
1920     assert(!Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).isBefore(interval));
1921     assert(!Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).isBefore(interval));
1923     assert(!interval.isBefore(PosInfInterval!Date(Date(2010, 7, 3))));
1924     assert(!interval.isBefore(PosInfInterval!Date(Date(2010, 7, 4))));
1925     assert(!interval.isBefore(PosInfInterval!Date(Date(2010, 7, 5))));
1926     assert(!interval.isBefore(PosInfInterval!Date(Date(2012, 1, 6))));
1927     assert(interval.isBefore(PosInfInterval!Date(Date(2012, 1, 7))));
1928     assert(interval.isBefore(PosInfInterval!Date(Date(2012, 1, 8))));
1930     assert(!interval.isBefore(NegInfInterval!Date(Date(2010, 7, 3))));
1931     assert(!interval.isBefore(NegInfInterval!Date(Date(2010, 7, 4))));
1932     assert(!interval.isBefore(NegInfInterval!Date(Date(2010, 7, 5))));
1933     assert(!interval.isBefore(NegInfInterval!Date(Date(2012, 1, 6))));
1934     assert(!interval.isBefore(NegInfInterval!Date(Date(2012, 1, 7))));
1935     assert(!interval.isBefore(NegInfInterval!Date(Date(2012, 1, 8))));
1937     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1938     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1939     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1940     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1941     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
1942     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1943     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1944     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
1974     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
1975                Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
1976     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
1977                Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
1978     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(
1979                Interval!Date(Date(2012, 3, 1), Date(2013, 5, 1))));
1981 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(PosInfInterval!Date(Date(1999, …
1982 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(PosInfInterval!Date(Date(2013, 3…
1984 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isBefore(NegInfInterval!Date(Date(1996, …
1992     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
1994 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isAfter(Date(2010, 7…
1996     assert(interval.isAfter(Date(2009, 7, 4)));
1997     assert(interval.isAfter(Date(2010, 7, 3)));
1998     assert(!interval.isAfter(Date(2010, 7, 4)));
1999     assert(!interval.isAfter(Date(2010, 7, 5)));
2000     assert(!interval.isAfter(Date(2011, 7, 1)));
2001     assert(!interval.isAfter(Date(2012, 1, 6)));
2002     assert(!interval.isAfter(Date(2012, 1, 7)));
2003     assert(!interval.isAfter(Date(2012, 1, 8)));
2004     assert(!interval.isAfter(Date(2013, 1, 7)));
2006     const cdate = Date(2010, 7, 6);
2007     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2008     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2014     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(Date(1994, 12, 24)));
2015     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(Date(2000, 1, 5)));
2016     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(Date(2012, 3, 1)));
2024     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2026 …  assertThrown!DateTimeException(interval.isAfter(Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2027 …  assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isAfter(interval));
2028     assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).isAfter(
2029                                        Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2032     assert(interval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
2033     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
2034     assert(interval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
2035     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
2036     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
2037     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
2038     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
2039     assert(!interval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
2040     assert(!interval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
2041     assert(!interval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
2042     assert(!interval.isAfter(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
2043     assert(!interval.isAfter(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
2045     assert(!Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).isAfter(interval));
2046     assert(!Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).isAfter(interval));
2047     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).isAfter(interval));
2048     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).isAfter(interval));
2049     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).isAfter(interval));
2050     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).isAfter(interval));
2051     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).isAfter(interval));
2052     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).isAfter(interval));
2053     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).isAfter(interval));
2054     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).isAfter(interval));
2055     assert(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).isAfter(interval));
2056     assert(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).isAfter(interval));
2058     assert(!interval.isAfter(PosInfInterval!Date(Date(2010, 7, 3))));
2059     assert(!interval.isAfter(PosInfInterval!Date(Date(2010, 7, 4))));
2060     assert(!interval.isAfter(PosInfInterval!Date(Date(2010, 7, 5))));
2061     assert(!interval.isAfter(PosInfInterval!Date(Date(2012, 1, 6))));
2062     assert(!interval.isAfter(PosInfInterval!Date(Date(2012, 1, 7))));
2063     assert(!interval.isAfter(PosInfInterval!Date(Date(2012, 1, 8))));
2065     assert(interval.isAfter(NegInfInterval!Date(Date(2010, 7, 3))));
2066     assert(interval.isAfter(NegInfInterval!Date(Date(2010, 7, 4))));
2067     assert(!interval.isAfter(NegInfInterval!Date(Date(2010, 7, 5))));
2068     assert(!interval.isAfter(NegInfInterval!Date(Date(2012, 1, 6))));
2069     assert(!interval.isAfter(NegInfInterval!Date(Date(2012, 1, 7))));
2070     assert(!interval.isAfter(NegInfInterval!Date(Date(2012, 1, 8))));
2072     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2073     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2074     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2075     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2076     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2077     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2078     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2079     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2109     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
2110                Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
2111     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
2112                Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
2113     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(
2114                Interval!Date(Date(1989, 3, 1), Date(1996, 1, 2))));
2116 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(PosInfInterval!Date(Date(1999, 5…
2118 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAfter(NegInfInterval!Date(Date(1996, 1,…
2126     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2128 …assertThrown!DateTimeException(interval.intersects(Interval!Date(Date(2010, 7, 4), dur!"days"(0)))…
2129 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).intersects(interval)…
2130     assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).intersects(
2131                                        Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2134     assert(!interval.intersects(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
2135     assert(interval.intersects(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
2136     assert(!interval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
2137     assert(interval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
2138     assert(interval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
2139     assert(interval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
2140     assert(interval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
2141     assert(interval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
2142     assert(interval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
2143     assert(interval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
2144     assert(!interval.intersects(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
2145     assert(!interval.intersects(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
2147     assert(!Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).intersects(interval));
2148     assert(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).intersects(interval));
2149     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).intersects(interval));
2150     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).intersects(interval));
2151     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).intersects(interval));
2152     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).intersects(interval));
2153     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).intersects(interval));
2154     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).intersects(interval));
2155     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).intersects(interval));
2156     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).intersects(interval));
2157     assert(!Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).intersects(interval));
2158     assert(!Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).intersects(interval));
2160     assert(interval.intersects(PosInfInterval!Date(Date(2010, 7, 3))));
2161     assert(interval.intersects(PosInfInterval!Date(Date(2010, 7, 4))));
2162     assert(interval.intersects(PosInfInterval!Date(Date(2010, 7, 5))));
2163     assert(interval.intersects(PosInfInterval!Date(Date(2012, 1, 6))));
2164     assert(!interval.intersects(PosInfInterval!Date(Date(2012, 1, 7))));
2165     assert(!interval.intersects(PosInfInterval!Date(Date(2012, 1, 8))));
2167     assert(!interval.intersects(NegInfInterval!Date(Date(2010, 7, 3))));
2168     assert(!interval.intersects(NegInfInterval!Date(Date(2010, 7, 4))));
2169     assert(interval.intersects(NegInfInterval!Date(Date(2010, 7, 5))));
2170     assert(interval.intersects(NegInfInterval!Date(Date(2012, 1, 6))));
2171     assert(interval.intersects(NegInfInterval!Date(Date(2012, 1, 7))));
2172     assert(interval.intersects(NegInfInterval!Date(Date(2012, 1, 8))));
2174     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2175     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2176     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2177     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2178     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2179     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2180     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2181     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2211     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
2212                Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))));
2213     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
2214                Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
2215     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(
2216                Interval!Date(Date(1989, 3, 1), Date(1996, 1, 2))));
2218 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(PosInfInterval!Date(Date(1999,…
2219 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(PosInfInterval!Date(Date(2012…
2221 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(NegInfInterval!Date(Date(1996…
2222 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersects(NegInfInterval!Date(Date(2000,…
2230     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2232 …assertThrown!DateTimeException(interval.intersection(Interval!Date(Date(2010, 7, 4), dur!"days"(0)…
2233 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).intersection(interva…
2234     assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 4), dur!"days"(0)).intersection(
2235                                        Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2237 …assertThrown!DateTimeException(interval.intersection(Interval!Date(Date(2010, 7, 1), Date(2010, 7,…
2238 …assertThrown!DateTimeException(interval.intersection(Interval!Date(Date(2010, 7, 3), Date(2010, 7,…
2239 …assertThrown!DateTimeException(interval.intersection(Interval!Date(Date(2012, 1, 7), Date(2012, 1,…
2240 …assertThrown!DateTimeException(interval.intersection(Interval!Date(Date(2012, 1, 8), Date(2012, 1,…
2242 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).intersection(inte…
2243 …assertThrown!DateTimeException(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).intersection(inte…
2244 …assertThrown!DateTimeException(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).intersection(inte…
2245 …assertThrown!DateTimeException(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).intersection(inte…
2247     assertThrown!DateTimeException(interval.intersection(PosInfInterval!Date(Date(2012, 1, 7))));
2248     assertThrown!DateTimeException(interval.intersection(PosInfInterval!Date(Date(2012, 1, 8))));
2250     assertThrown!DateTimeException(interval.intersection(NegInfInterval!Date(Date(2010, 7, 3))));
2251     assertThrown!DateTimeException(interval.intersection(NegInfInterval!Date(Date(2010, 7, 4))));
2254     assert(interval.intersection(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
2255            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2256     assert(interval.intersection(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
2257            Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)));
2258     assert(interval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
2259            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2260     assert(interval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
2261            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2262     assert(interval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
2263            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)));
2264     assert(interval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
2265            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)));
2266     assert(interval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
2267            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
2268     assert(interval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
2269            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
2271     assert(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).intersection(interval) ==
2272            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2273     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).intersection(interval) ==
2274            Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)));
2275     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).intersection(interval) ==
2276            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2277     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).intersection(interval) ==
2278            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2279     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).intersection(interval) ==
2280            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)));
2281     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).intersection(interval) ==
2282            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)));
2283     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).intersection(interval) ==
2284            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
2285     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).intersection(interval) ==
2286            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
2288     assert(interval.intersection(PosInfInterval!Date(Date(2010, 7, 3))) ==
2289            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2290     assert(interval.intersection(PosInfInterval!Date(Date(2010, 7, 4))) ==
2291            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2292     assert(interval.intersection(PosInfInterval!Date(Date(2010, 7, 5))) ==
2293            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)));
2294     assert(interval.intersection(PosInfInterval!Date(Date(2012, 1, 6))) ==
2295            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
2297     assert(interval.intersection(NegInfInterval!Date(Date(2010, 7, 5))) ==
2298            Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)));
2299     assert(interval.intersection(NegInfInterval!Date(Date(2012, 1, 6))) ==
2300            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 6)));
2301     assert(interval.intersection(NegInfInterval!Date(Date(2012, 1, 7))) ==
2302            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2303     assert(interval.intersection(NegInfInterval!Date(Date(2012, 1, 8))) ==
2304            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2306     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2307     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2308     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2309     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2310     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2311     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2312     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2313     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2343     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2344                Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2))) ==
2345            Interval!Date(Date(1996, 1 , 2), Date(2000, 8, 2)));
2346     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2347                Interval!Date(Date(1999, 1, 12),Date(2011, 9, 17))) ==
2348            Interval!Date(Date(1999, 1 , 12), Date(2011, 9, 17)));
2350     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2351                PosInfInterval!Date(Date(1990, 7, 6))) ==
2352            Interval!Date(Date(1996, 1 , 2), Date(2012, 3, 1)));
2353     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2354                PosInfInterval!Date(Date(1999, 1, 12))) ==
2355            Interval!Date(Date(1999, 1 , 12), Date(2012, 3, 1)));
2357     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2358                NegInfInterval!Date(Date(1999, 7, 6))) ==
2359            Interval!Date(Date(1996, 1 , 2), Date(1999, 7, 6)));
2360     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).intersection(
2361                NegInfInterval!Date(Date(2013, 1, 12))) ==
2362            Interval!Date(Date(1996, 1 , 2), Date(2012, 3, 1)));
2370     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2372 … static void testInterval(scope const Interval!Date interval1, scope const Interval!Date interval2)
2377 …assertThrown!DateTimeException(testInterval(interval, Interval!Date(Date(2010, 7, 4), dur!"days"(0…
2378 …assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), interv…
2379     assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)),
2380                                                 Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2383     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
2384     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
2385     assert(interval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
2386     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
2387     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
2388     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
2389     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
2390     assert(!interval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
2391     assert(!interval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
2392     assert(!interval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
2393     assert(interval.isAdjacent(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
2394     assert(!interval.isAdjacent(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
2396     assert(!Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).isAdjacent(interval));
2397     assert(!Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).isAdjacent(interval));
2398     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).isAdjacent(interval));
2399     assert(!Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).isAdjacent(interval));
2400     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).isAdjacent(interval));
2401     assert(!Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).isAdjacent(interval));
2402     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).isAdjacent(interval));
2403     assert(!Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).isAdjacent(interval));
2404     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).isAdjacent(interval));
2405     assert(!Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).isAdjacent(interval));
2406     assert(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).isAdjacent(interval));
2407     assert(!Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).isAdjacent(interval));
2409     assert(!interval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 3))));
2410     assert(!interval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 4))));
2411     assert(!interval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 5))));
2412     assert(!interval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 6))));
2413     assert(interval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 7))));
2414     assert(!interval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 8))));
2416     assert(!interval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 3))));
2417     assert(interval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 4))));
2418     assert(!interval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 5))));
2419     assert(!interval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 6))));
2420     assert(!interval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 7))));
2421     assert(!interval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 8))));
2423     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2424     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2425     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2426     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2427     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2428     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2429     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2430     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2460     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
2461                Interval!Date(Date(1990, 7, 6), Date(1996, 1, 2))));
2462     assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
2463                Interval!Date(Date(2012, 3, 1), Date(2013, 9, 17))));
2464     assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(
2465                Interval!Date(Date(1989, 3, 1), Date(2012, 3, 1))));
2467 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(PosInfInterval!Date(Date(1999…
2468 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(PosInfInterval!Date(Date(2012,…
2470 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).isAdjacent(NegInfInterval!Date(Date(1996,…
2471 …assert(!Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)) .isAdjacent(NegInfInterval!Date(Date(200…
2479     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2481     static void testInterval(I)(scope const Interval!Date interval1, scope const I interval2)  in testInterval()
2486 …assertThrown!DateTimeException(testInterval(interval, Interval!Date(Date(2010, 7, 4), dur!"days"(0…
2487 …assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), interv…
2488     assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)),
2489                                                 Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2491 …assertThrown!DateTimeException(testInterval(interval, Interval!Date(Date(2010, 7, 1), Date(2010, 7…
2492 …assertThrown!DateTimeException(testInterval(interval, Interval!Date(Date(2012, 1, 8), Date(2012, 1…
2494 …assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)), int…
2495 …assertThrown!DateTimeException(testInterval(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)), int…
2497     assertThrown!DateTimeException(testInterval(interval, PosInfInterval!Date(Date(2012, 1, 8))));
2499     assertThrown!DateTimeException(testInterval(interval, NegInfInterval!Date(Date(2010, 7, 3))));
2502     assert(interval.merge(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
2503            Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)));
2504     assert(interval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
2505            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2506     assert(interval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
2507            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2508     assert(interval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
2509            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2510     assert(interval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
2511            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)));
2512     assert(interval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
2513            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2514     assert(interval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
2515            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2516     assert(interval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
2517            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2518     assert(interval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
2519            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2520     assert(interval.merge(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
2521            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2523     assert(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).merge(interval) ==
2524            Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)));
2525     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).merge(interval) ==
2526            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2527     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).merge(interval) ==
2528            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2529     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).merge(interval) ==
2530            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2531     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).merge(interval) ==
2532            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)));
2533     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).merge(interval) ==
2534            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2535     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).merge(interval) ==
2536            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2537     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).merge(interval) ==
2538            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2539     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).merge(interval) ==
2540            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2541     assert(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).merge(interval) ==
2542            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2544     assert(interval.merge(PosInfInterval!Date(Date(2010, 7, 3))) ==
2545            PosInfInterval!Date(Date(2010, 7, 3)));
2546     assert(interval.merge(PosInfInterval!Date(Date(2010, 7, 4))) ==
2547            PosInfInterval!Date(Date(2010, 7, 4)));
2548     assert(interval.merge(PosInfInterval!Date(Date(2010, 7, 5))) ==
2549            PosInfInterval!Date(Date(2010, 7, 4)));
2550     assert(interval.merge(PosInfInterval!Date(Date(2012, 1, 6))) ==
2551            PosInfInterval!Date(Date(2010, 7, 4)));
2552     assert(interval.merge(PosInfInterval!Date(Date(2012, 1, 7))) ==
2553            PosInfInterval!Date(Date(2010, 7, 4)));
2555     assert(interval.merge(NegInfInterval!Date(Date(2010, 7, 4))) ==
2556            NegInfInterval!Date(Date(2012, 1, 7)));
2557     assert(interval.merge(NegInfInterval!Date(Date(2010, 7, 5))) ==
2558            NegInfInterval!Date(Date(2012, 1, 7)));
2559     assert(interval.merge(NegInfInterval!Date(Date(2012, 1, 6))) ==
2560            NegInfInterval!Date(Date(2012, 1, 7)));
2561     assert(interval.merge(NegInfInterval!Date(Date(2012, 1, 7))) ==
2562            NegInfInterval!Date(Date(2012, 1, 7)));
2563     assert(interval.merge(NegInfInterval!Date(Date(2012, 1, 8))) ==
2564            NegInfInterval!Date(Date(2012, 1, 8)));
2566     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2567     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2568     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2569     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2570     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2571     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2572     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2573     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2603 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(Interval!Date(Date(1990, 7, 6), Dat…
2604            Interval!Date(Date(1990, 7 , 6), Date(2012, 3, 1)));
2605 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(Interval!Date(Date(2012, 3, 1), Dat…
2606            Interval!Date(Date(1996, 1 , 2), Date(2013, 5, 7)));
2608 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(PosInfInterval!Date(Date(1990, 7, 6…
2609            PosInfInterval!Date(Date(1990, 7 , 6)));
2610 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(PosInfInterval!Date(Date(2012, 3, 1…
2611            PosInfInterval!Date(Date(1996, 1 , 2)));
2613 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(NegInfInterval!Date(Date(1996, 1, 2…
2614            NegInfInterval!Date(Date(2012, 3 , 1)));
2615 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).merge(NegInfInterval!Date(Date(2013, 1, 1…
2616            NegInfInterval!Date(Date(2013, 1 , 12)));
2624     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2626 … static void testInterval(scope const Interval!Date interval1, scope const Interval!Date interval2)
2631 …assertThrown!DateTimeException(testInterval(interval, Interval!Date(Date(2010, 7, 4), dur!"days"(0…
2632 …assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)),interva…
2633     assertThrown!DateTimeException(testInterval(Interval!Date(Date(2010, 7, 4), dur!"days"(0)),
2634                                                 Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
2637     assert(interval.span(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))) ==
2638            Interval!Date(Date(2010, 7, 1), Date(2012, 1, 7)));
2639     assert(interval.span(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
2640            Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)));
2641     assert(interval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
2642            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2643     assert(interval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
2644            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2645     assert(interval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
2646            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2647     assert(interval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
2648            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)));
2649     assert(interval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
2650            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2651     assert(interval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
2652            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2653     assert(interval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
2654            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2655     assert(interval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
2656            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2657     assert(interval.span(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
2658            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2659     assert(interval.span(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))) ==
2660            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 9)));
2662     assert(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)).span(interval) ==
2663            Interval!Date(Date(2010, 7, 1), Date(2012, 1, 7)));
2664     assert(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)).span(interval) ==
2665            Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3)));
2666     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)).span(interval) ==
2667            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2668     assert(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)).span(interval) ==
2669            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2670     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)).span(interval) ==
2671            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
2672     assert(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)).span(interval) ==
2673            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8)));
2674     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)).span(interval) ==
2675            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2676     assert(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)).span(interval) ==
2677            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2678     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)).span(interval) ==
2679            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
2680     assert(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)).span(interval) ==
2681            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2682     assert(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)).span(interval) ==
2683            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
2684     assert(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)).span(interval) ==
2685            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 9)));
2687 …assert(interval.span(PosInfInterval!Date(Date(2010, 7, 3))) == PosInfInterval!Date(Date(2010, 7, 3…
2688 …assert(interval.span(PosInfInterval!Date(Date(2010, 7, 4))) == PosInfInterval!Date(Date(2010, 7, 4…
2689 …assert(interval.span(PosInfInterval!Date(Date(2010, 7, 5))) == PosInfInterval!Date(Date(2010, 7, 4…
2690 …assert(interval.span(PosInfInterval!Date(Date(2012, 1, 6))) == PosInfInterval!Date(Date(2010, 7, 4…
2691 …assert(interval.span(PosInfInterval!Date(Date(2012, 1, 7))) == PosInfInterval!Date(Date(2010, 7, 4…
2692 …assert(interval.span(PosInfInterval!Date(Date(2012, 1, 8))) == PosInfInterval!Date(Date(2010, 7, 4…
2694 …assert(interval.span(NegInfInterval!Date(Date(2010, 7, 3))) == NegInfInterval!Date(Date(2012, 1, 7…
2695 …assert(interval.span(NegInfInterval!Date(Date(2010, 7, 4))) == NegInfInterval!Date(Date(2012, 1, 7…
2696 …assert(interval.span(NegInfInterval!Date(Date(2010, 7, 5))) == NegInfInterval!Date(Date(2012, 1, 7…
2697 …assert(interval.span(NegInfInterval!Date(Date(2012, 1, 6))) == NegInfInterval!Date(Date(2012, 1, 7…
2698 …assert(interval.span(NegInfInterval!Date(Date(2012, 1, 7))) == NegInfInterval!Date(Date(2012, 1, 7…
2699 …assert(interval.span(NegInfInterval!Date(Date(2012, 1, 8))) == NegInfInterval!Date(Date(2012, 1, 8…
2701     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2702     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2703     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2704     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2705     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
2706     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2707     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2708     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
2738 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(Interval!Date(Date(1990, 7, 6), Date…
2739            Interval!Date(Date(1990, 7 , 6), Date(2012, 3, 1)));
2740 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(Interval!Date(Date(2012, 3, 1), Date…
2741            Interval!Date(Date(1996, 1 , 2), Date(2013, 5, 7)));
2743 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(PosInfInterval!Date(Date(1990, 7, 6)…
2744            PosInfInterval!Date(Date(1990, 7 , 6)));
2745 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(PosInfInterval!Date(Date(2050, 1, 1)…
2746            PosInfInterval!Date(Date(1996, 1 , 2)));
2748 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(NegInfInterval!Date(Date(1602, 5, 21…
2749            NegInfInterval!Date(Date(2012, 3 , 1)));
2750 …assert(Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1)).span(NegInfInterval!Date(Date(2013, 1, 12…
2751            NegInfInterval!Date(Date(2013, 1 , 12)));
2759     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2761     static void testIntervalFail(Interval!Date interval, scope const Duration duration)
2766 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), du…
2775     testInterval(interval, dur!"days"(22), Interval!Date(Date(2010, 7, 26), Date(2012, 1, 29)));
2776     testInterval(interval, dur!"days"(-22), Interval!Date(Date(2010, 6, 12), Date(2011, 12, 16)));
2778     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2779     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2784     auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 4, 5));
2785     auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 4, 5));
2788     assert(interval1 == Interval!Date(Date(1996, 2, 21), Date(2012, 5, 25)));
2791     assert(interval2 == Interval!Date(Date(1995, 11, 13), Date(2012, 2, 15)));
2800         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2802         static void testIntervalFail(Interval!Date interval, int years, int months)
2807 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), 1,…
2816 …testInterval(interval, 5, 0, AllowDayOverflow.yes, Interval!Date(Date(2015, 7, 4), Date(2017, 1, 7…
2817 …testInterval(interval, -5, 0, AllowDayOverflow.yes, Interval!Date(Date(2005, 7, 4), Date(2007, 1, …
2819         auto interval2 = Interval!Date(Date(2000, 1, 29), Date(2010, 5, 31));
2821 …testInterval(interval2, 1, 1, AllowDayOverflow.yes, Interval!Date(Date(2001, 3, 1), Date(2011, 7, …
2822 …testInterval(interval2, 1, -1, AllowDayOverflow.yes, Interval!Date(Date(2000, 12, 29), Date(2011, …
2823 …estInterval(interval2, -1, -1, AllowDayOverflow.yes, Interval!Date(Date(1998, 12, 29), Date(2009, …
2824 …testInterval(interval2, -1, 1, AllowDayOverflow.yes, Interval!Date(Date(1999, 3, 1), Date(2009, 7,…
2826 …testInterval(interval2, 1, 1, AllowDayOverflow.no, Interval!Date(Date(2001, 2, 28), Date(2011, 6, …
2827 …testInterval(interval2, 1, -1, AllowDayOverflow.no, Interval!Date(Date(2000, 12, 29), Date(2011, 4…
2828 …testInterval(interval2, -1, -1, AllowDayOverflow.no, Interval!Date(Date(1998, 12, 29), Date(2009, …
2829 …testInterval(interval2, -1, 1, AllowDayOverflow.no, Interval!Date(Date(1999, 2, 28), Date(2009, 6,…
2832     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2833     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2838     auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2839     auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2842     assert(interval1 == Interval!Date(Date(1998, 1, 2), Date(2014, 3, 1)));
2845     assert(interval2 == Interval!Date(Date(1994, 1, 2), Date(2010, 3, 1)));
2853     auto interval = Interval!Date(Date(2000, 7, 4), Date(2012, 1, 7));
2860 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), du…
2861 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)),…
2870     testInterval(interval, dur!"days"(22), Interval!Date(Date(2000, 6, 12), Date(2012, 1, 29)));
2871     testInterval(interval, dur!"days"(-22), Interval!Date(Date(2000, 7, 26), Date(2011, 12, 16)));
2873     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2874     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2879     auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2880     auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2883     assert(interval1 == Interval!Date(Date(1995, 12, 31), Date(2012, 3, 3)));
2886     assert(interval2 == Interval!Date(Date(1996, 1, 4), Date(2012, 2, 28)));
2895         auto interval = Interval!Date(Date(2000, 7, 4), Date(2012, 1, 7));
2897         static void testIntervalFail(Interval!Date interval, int years, int months)
2902 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), dur!"days"(0)), 1,…
2903 …assertThrown!DateTimeException(testIntervalFail(Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)),…
2913                      Interval!Date(Date(1995, 7, 4), Date(2017, 1, 7)));
2915                      Interval!Date(Date(2005, 7, 4), Date(2007, 1, 7)));
2918                      Interval!Date(Date(2000, 7, 4), Date(2017, 1, 7)));
2920                      Interval!Date(Date(2000, 7, 4), Date(2007, 1, 7)));
2923                      Interval!Date(Date(1995, 7, 4), Date(2012, 1, 7)));
2925                      Interval!Date(Date(2005, 7, 4), Date(2012, 1, 7)));
2927         auto interval2 = Interval!Date(Date(2000, 1, 29), Date(2010, 5, 31));
2930                      Interval!Date(Date(1998, 12, 29), Date(2011, 7, 1)));
2932                      Interval!Date(Date(1999, 3, 1), Date(2011, 5, 1)));
2934                      Interval!Date(Date(2001, 3, 1), Date(2009, 5, 1)));
2936                      Interval!Date(Date(2000, 12, 29), Date(2009, 7, 1)));
2939                      Interval!Date(Date(1998, 12, 29), Date(2011, 6, 30)));
2941                      Interval!Date(Date(1999, 2, 28), Date(2011, 4, 30)));
2943                      Interval!Date(Date(2001, 2, 28), Date(2009, 4, 30)));
2945                      Interval!Date(Date(2000, 12, 29), Date(2009, 6, 30)));
2948                      Interval!Date(Date(2000, 1, 29), Date(2011, 7, 1)));
2950                      Interval!Date(Date(2000, 1, 29), Date(2011, 5, 1)));
2952                      Interval!Date(Date(2000, 1, 29), Date(2009, 5, 1)));
2954                      Interval!Date(Date(2000, 1, 29), Date(2009, 7, 1)));
2957                      Interval!Date(Date(2000, 1, 29), Date(2011, 6, 30)));
2959                      Interval!Date(Date(2000, 1, 29), Date(2011, 4, 30)));
2961                      Interval!Date(Date(2000, 1, 29), Date(2009, 4, 30)));
2963                      Interval!Date(Date(2000, 1, 29), Date(2009, 6, 30)));
2966                      Interval!Date(Date(1998, 12, 29), Date(2010, 5, 31)));
2968                      Interval!Date(Date(1999, 3, 1), Date(2010, 5, 31)));
2970                      Interval!Date(Date(2001, 3, 1), Date(2010, 5, 31)));
2972                      Interval!Date(Date(2000, 12, 29), Date(2010, 5, 31)));
2975                      Interval!Date(Date(1998, 12, 29), Date(2010, 5, 31)));
2977                      Interval!Date(Date(1999, 2, 28), Date(2010, 5, 31)));
2979                      Interval!Date(Date(2001, 2, 28), Date(2010, 5, 31)));
2981                      Interval!Date(Date(2000, 12, 29), Date(2010, 5, 31)));
2984     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2985     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
2990     auto interval1 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2991     auto interval2 = Interval!Date(Date(1996, 1, 2), Date(2012, 3, 1));
2994     assert(interval1 == Interval!Date(Date(1994, 1, 2), Date(2014, 3, 1)));
2997     assert(interval2 == Interval!Date(Date(1998, 1, 2), Date(2010, 3, 1)));
3006         auto interval = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 21));
3008         static void testInterval1(Interval!Date interval)
3010             interval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri));
3013 …     assertThrown!DateTimeException(testInterval1(Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
3015         static void testInterval2(Interval!Date interval)
3017             interval.fwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).popFront();
3022         assert(!interval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
3023         assert(interval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri), PopFirst.yes).empty);
3025 …assert(Interval!Date(Date(2010, 9, 12), Date(2010, 10, 1)).fwdRange(everyDayOfWeek!Date(DayOfWeek.…
3026                Date(2010, 9, 12));
3028         assert(Interval!Date(Date(2010, 9, 12), Date(2010, 10, 1)).fwdRange(
3029                    everyDayOfWeek!Date(DayOfWeek.fri), PopFirst.yes).front == Date(2010, 9, 17));
3034         auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
3035         auto func = delegate (scope const Date date)  in delegate()
3044         assert(range.front == Date(2010, 9, 1));
3047         assert(range.front == Date(2010, 9, 2));
3050         assert(range.front == Date(2010, 9, 4));
3053         assert(range.front == Date(2010, 9, 6));
3056         assert(range.front == Date(2010, 9, 8));
3062     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3063     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3064     assert(!cInterval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
3065     assert(!iInterval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
3074         auto interval = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 21));
3076         static void testInterval1(Interval!Date interval)
3078             interval.bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri));
3081 …     assertThrown!DateTimeException(testInterval1(Interval!Date(Date(2010, 7, 4), dur!"days"(0))));
3083         static void testInterval2(Interval!Date interval)
3085             interval.bwdRange(everyDayOfWeek!(Date, Direction.fwd)(DayOfWeek.fri)).popFront();
3090         assert(!interval.bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).empty);
3091 …assert(interval.bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri), PopFirst.yes).empty);
3093         assert(Interval!Date(Date(2010, 9, 19), Date(2010, 10, 1)).bwdRange(
3094                    everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).front == Date(2010, 10, 1));
3096         assert(Interval!Date(Date(2010, 9, 19), Date(2010, 10, 1)).bwdRange(
3097 …    everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri), PopFirst.yes).front == Date(2010, 9, 24));
3102         auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
3103         auto func = delegate (scope const Date date)  in delegate()
3112         assert(range.front == Date(2010, 9, 9));
3115         assert(range.front == Date(2010, 9, 8));
3118         assert(range.front == Date(2010, 9, 6));
3121         assert(range.front == Date(2010, 9, 4));
3124         assert(range.front == Date(2010, 9, 2));
3130     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3131     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3132     assert(!cInterval.bwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
3133     assert(!iInterval.bwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
3141 …assert(Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).toString() == "[2010-Jul-04 - 2012-Jan-07…
3143     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3144     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
3167 auto interval = PosInfInterval!Date(Date(1996, 1, 2));  in PosInfInterval()
3203 assert(PosInfInterval!Date(Date(1996, 1, 2)).begin == Date(1996, 1, 2));  in PosInfInterval()
4181     PosInfInterval!Date(Date.init);
4187     auto interval = PosInfInterval!Date(Date(1996, 1, 2));
4195     assert(PosInfInterval!Date(Date(1, 1, 1)).begin == Date(1, 1, 1));
4196     assert(PosInfInterval!Date(Date(2010, 1, 1)).begin == Date(2010, 1, 1));
4197     assert(PosInfInterval!Date(Date(1997, 12, 31)).begin == Date(1997, 12, 31));
4199     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4200     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4201     assert(cPosInfInterval.begin != Date.init);
4202     assert(iPosInfInterval.begin != Date.init);
4205     assert(PosInfInterval!Date(Date(1996, 1, 2)).begin == Date(1996, 1, 2));
4214     assert(!PosInfInterval!Date(Date(2010, 1, 1)).empty);
4219     const cPosInfInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4220     immutable iPosInfInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4225     assert(!PosInfInterval!Date(Date(1996, 1, 2)).empty);
4233     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4235     assert(!posInfInterval.contains(Date(2009, 7, 4)));
4236     assert(!posInfInterval.contains(Date(2010, 7, 3)));
4237     assert(posInfInterval.contains(Date(2010, 7, 4)));
4238     assert(posInfInterval.contains(Date(2010, 7, 5)));
4239     assert(posInfInterval.contains(Date(2011, 7, 1)));
4240     assert(posInfInterval.contains(Date(2012, 1, 6)));
4241     assert(posInfInterval.contains(Date(2012, 1, 7)));
4242     assert(posInfInterval.contains(Date(2012, 1, 8)));
4243     assert(posInfInterval.contains(Date(2013, 1, 7)));
4245     const cdate = Date(2010, 7, 6);
4246     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4247     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4253     assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains(Date(1994, 12, 24)));
4254     assert(PosInfInterval!Date(Date(1996, 1, 2)).contains(Date(2000, 1, 5)));
4262     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4264 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4269 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4272     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
4273     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
4274     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
4275     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
4276     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
4277     assert(!posInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
4278     assert(posInfInterval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
4279     assert(posInfInterval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
4280     assert(posInfInterval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
4281     assert(posInfInterval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
4282     assert(posInfInterval.contains(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
4283     assert(posInfInterval.contains(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
4285     assert(!posInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 3))));
4286     assert(posInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 4))));
4287     assert(posInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 5))));
4288     assert(posInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 6))));
4289     assert(posInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 7))));
4290     assert(posInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 8))));
4292     assert(PosInfInterval!Date(Date(2010, 7, 3)).contains(posInfInterval));
4293     assert(PosInfInterval!Date(Date(2010, 7, 4)).contains(posInfInterval));
4294     assert(!PosInfInterval!Date(Date(2010, 7, 5)).contains(posInfInterval));
4295     assert(!PosInfInterval!Date(Date(2012, 1, 6)).contains(posInfInterval));
4296     assert(!PosInfInterval!Date(Date(2012, 1, 7)).contains(posInfInterval));
4297     assert(!PosInfInterval!Date(Date(2012, 1, 8)).contains(posInfInterval));
4299     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 3))));
4300     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 4))));
4301     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 5))));
4302     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 6))));
4303     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 7))));
4304     assert(!posInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 8))));
4306     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4307     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4308     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4309     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4310     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4311     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4312     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4313     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4343 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains(Interval!Date(Date(1990, 7, 6), Date(2000, …
4344 …assert(PosInfInterval!Date(Date(1996, 1, 2)).contains(Interval!Date(Date(1999, 1, 12), Date(2011, …
4345 …assert(PosInfInterval!Date(Date(1996, 1, 2)).contains(Interval!Date(Date(1998, 2, 28), Date(2013, …
4347     assert(PosInfInterval!Date(Date(1996, 1, 2)).contains(PosInfInterval!Date(Date(1999, 5, 4))));
4348     assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains(PosInfInterval!Date(Date(1995, 7, 2))));
4350     assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains(NegInfInterval!Date(Date(1996, 5, 4))));
4358     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4360     assert(!posInfInterval.isBefore(Date(2009, 7, 3)));
4361     assert(!posInfInterval.isBefore(Date(2010, 7, 3)));
4362     assert(!posInfInterval.isBefore(Date(2010, 7, 4)));
4363     assert(!posInfInterval.isBefore(Date(2010, 7, 5)));
4364     assert(!posInfInterval.isBefore(Date(2011, 7, 1)));
4365     assert(!posInfInterval.isBefore(Date(2012, 1, 6)));
4366     assert(!posInfInterval.isBefore(Date(2012, 1, 7)));
4367     assert(!posInfInterval.isBefore(Date(2012, 1, 8)));
4368     assert(!posInfInterval.isBefore(Date(2013, 1, 7)));
4370     const cdate = Date(2010, 7, 6);
4371     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4372     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4378     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(Date(1994, 12, 24)));
4379     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(Date(2000, 1, 5)));
4387     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4389 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4394 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4397     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
4398     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
4399     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
4400     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
4401     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
4402     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
4403     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
4404     assert(!posInfInterval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
4405     assert(!posInfInterval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
4406     assert(!posInfInterval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
4407     assert(!posInfInterval.isBefore(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
4408     assert(!posInfInterval.isBefore(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
4410     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 3))));
4411     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 4))));
4412     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 5))));
4413     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 6))));
4414     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 7))));
4415     assert(!posInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 8))));
4417     assert(!PosInfInterval!Date(Date(2010, 7, 3)).isBefore(posInfInterval));
4418     assert(!PosInfInterval!Date(Date(2010, 7, 4)).isBefore(posInfInterval));
4419     assert(!PosInfInterval!Date(Date(2010, 7, 5)).isBefore(posInfInterval));
4420     assert(!PosInfInterval!Date(Date(2012, 1, 6)).isBefore(posInfInterval));
4421     assert(!PosInfInterval!Date(Date(2012, 1, 7)).isBefore(posInfInterval));
4422     assert(!PosInfInterval!Date(Date(2012, 1, 8)).isBefore(posInfInterval));
4424     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 3))));
4425     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 4))));
4426     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 5))));
4427     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 6))));
4428     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 7))));
4429     assert(!posInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 8))));
4431     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4432     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4433     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4434     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4435     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4436     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4437     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4438     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4468 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(Interval!Date(Date(1990, 7, 6), Date(2000, …
4469 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(Interval!Date(Date(1999, 1, 12), Date(2011,…
4471     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(PosInfInterval!Date(Date(1992, 5, 4))));
4472     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(PosInfInterval!Date(Date(2013, 3, 7))));
4474     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isBefore(NegInfInterval!Date(Date(1996, 5, 4))));
4482     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4484     assert(posInfInterval.isAfter(Date(2009, 7, 3)));
4485     assert(posInfInterval.isAfter(Date(2010, 7, 3)));
4486     assert(!posInfInterval.isAfter(Date(2010, 7, 4)));
4487     assert(!posInfInterval.isAfter(Date(2010, 7, 5)));
4488     assert(!posInfInterval.isAfter(Date(2011, 7, 1)));
4489     assert(!posInfInterval.isAfter(Date(2012, 1, 6)));
4490     assert(!posInfInterval.isAfter(Date(2012, 1, 7)));
4491     assert(!posInfInterval.isAfter(Date(2012, 1, 8)));
4492     assert(!posInfInterval.isAfter(Date(2013, 1, 7)));
4494     const cdate = Date(2010, 7, 6);
4495     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4496     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4502     assert(PosInfInterval!Date(Date(1996, 1, 2)).isAfter(Date(1994, 12, 24)));
4503     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(Date(2000, 1, 5)));
4511     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4513 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4518 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4521     assert(posInfInterval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
4522     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
4523     assert(posInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
4524     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
4525     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
4526     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
4527     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
4528     assert(!posInfInterval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
4529     assert(!posInfInterval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
4530     assert(!posInfInterval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
4531     assert(!posInfInterval.isAfter(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
4532     assert(!posInfInterval.isAfter(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
4534     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 3))));
4535     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 4))));
4536     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 5))));
4537     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 6))));
4538     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 7))));
4539     assert(!posInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 8))));
4541     assert(!PosInfInterval!Date(Date(2010, 7, 3)).isAfter(posInfInterval));
4542     assert(!PosInfInterval!Date(Date(2010, 7, 4)).isAfter(posInfInterval));
4543     assert(!PosInfInterval!Date(Date(2010, 7, 5)).isAfter(posInfInterval));
4544     assert(!PosInfInterval!Date(Date(2012, 1, 6)).isAfter(posInfInterval));
4545     assert(!PosInfInterval!Date(Date(2012, 1, 7)).isAfter(posInfInterval));
4546     assert(!PosInfInterval!Date(Date(2012, 1, 8)).isAfter(posInfInterval));
4548     assert(posInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 3))));
4549     assert(posInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 4))));
4550     assert(!posInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 5))));
4551     assert(!posInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 6))));
4552     assert(!posInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 7))));
4553     assert(!posInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 8))));
4555     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4556     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4557     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4558     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4559     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4560     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4561     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4562     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4592 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(Interval!Date(Date(1990, 7, 6), Date(2000, 8…
4593 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(Interval!Date(Date(1999, 1, 12), Date(2011, …
4594 …assert(PosInfInterval!Date(Date(1996, 1, 2)).isAfter(Interval!Date(Date(1989, 3, 1), Date(1996, 1,…
4596     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(PosInfInterval!Date(Date(1990, 1, 7))));
4597     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(PosInfInterval!Date(Date(1999, 5, 4))));
4599     assert(PosInfInterval!Date(Date(1996, 1, 2)).isAfter(NegInfInterval!Date(Date(1996, 1, 2))));
4600     assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAfter(NegInfInterval!Date(Date(2000, 7, 1))));
4608     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4610 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4615 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4618     assert(!posInfInterval.intersects(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
4619     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
4620     assert(!posInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
4621     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
4622     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
4623     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
4624     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
4625     assert(posInfInterval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
4626     assert(posInfInterval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
4627     assert(posInfInterval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
4628     assert(posInfInterval.intersects(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
4629     assert(posInfInterval.intersects(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
4631     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 3))));
4632     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 4))));
4633     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 5))));
4634     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 6))));
4635     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 7))));
4636     assert(posInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 8))));
4638     assert(PosInfInterval!Date(Date(2010, 7, 3)).intersects(posInfInterval));
4639     assert(PosInfInterval!Date(Date(2010, 7, 4)).intersects(posInfInterval));
4640     assert(PosInfInterval!Date(Date(2010, 7, 5)).intersects(posInfInterval));
4641     assert(PosInfInterval!Date(Date(2012, 1, 6)).intersects(posInfInterval));
4642     assert(PosInfInterval!Date(Date(2012, 1, 7)).intersects(posInfInterval));
4643     assert(PosInfInterval!Date(Date(2012, 1, 8)).intersects(posInfInterval));
4645     assert(!posInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 3))));
4646     assert(!posInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 4))));
4647     assert(posInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 5))));
4648     assert(posInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 6))));
4649     assert(posInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 7))));
4650     assert(posInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 8))));
4652     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4653     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4654     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4655     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4656     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4657     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4658     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4659     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4689 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersects(Interval!Date(Date(1990, 7, 6), Date(2000,…
4690 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersects(Interval!Date(Date(1999, 1, 12), Date(2011…
4691 …assert(!PosInfInterval!Date(Date(1996, 1, 2)).intersects(Interval!Date(Date(1989, 3, 1), Date(1996…
4693     assert(PosInfInterval!Date(Date(1996, 1, 2)).intersects(PosInfInterval!Date(Date(1990, 1, 7))));
4694     assert(PosInfInterval!Date(Date(1996, 1, 2)).intersects(PosInfInterval!Date(Date(1999, 5, 4))));
4696 …  assert(!PosInfInterval!Date(Date(1996, 1, 2)).intersects(NegInfInterval!Date(Date(1996, 1, 2))));
4697     assert(PosInfInterval!Date(Date(1996, 1, 2)).intersects(NegInfInterval!Date(Date(2000, 7, 1))));
4705     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4712 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4714 …Thrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 1), Date(2010, 7…
4715 …Thrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 3), Date(2010, 7…
4717 …assertThrown!DateTimeException(testInterval(posInfInterval, NegInfInterval!Date(Date(2010, 7, 3)))…
4718 …assertThrown!DateTimeException(testInterval(posInfInterval, NegInfInterval!Date(Date(2010, 7, 4)))…
4721     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
4722            Interval!Date(Date(2010, 7, 4), Date(2013, 7, 3)));
4723     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
4724            Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)));
4725     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
4726            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
4727     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
4728            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
4729     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
4730            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)));
4731     assert(posInfInterval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
4732            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)));
4733     assert(posInfInterval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
4734            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
4735     assert(posInfInterval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
4736            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8)));
4737     assert(posInfInterval.intersection(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
4738            Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8)));
4739     assert(posInfInterval.intersection(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))) ==
4740            Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9)));
4742 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 3))) == PosInfInterval!Date(D…
4743 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 4))) == PosInfInterval!Date(D…
4744 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 5))) == PosInfInterval!Date(D…
4745 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2012, 1, 6))) == PosInfInterval!Date(D…
4746 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2012, 1, 7))) == PosInfInterval!Date(D…
4747 …assert(posInfInterval.intersection(PosInfInterval!Date(Date(2012, 1, 8))) == PosInfInterval!Date(D…
4749 …assert(PosInfInterval!Date(Date(2010, 7, 3)).intersection(posInfInterval) == PosInfInterval!Date(D…
4750 …assert(PosInfInterval!Date(Date(2010, 7, 4)).intersection(posInfInterval) == PosInfInterval!Date(D…
4751 …assert(PosInfInterval!Date(Date(2010, 7, 5)).intersection(posInfInterval) == PosInfInterval!Date(D…
4752 …assert(PosInfInterval!Date(Date(2012, 1, 6)).intersection(posInfInterval) == PosInfInterval!Date(D…
4753 …assert(PosInfInterval!Date(Date(2012, 1, 7)).intersection(posInfInterval) == PosInfInterval!Date(D…
4754 …assert(PosInfInterval!Date(Date(2012, 1, 8)).intersection(posInfInterval) == PosInfInterval!Date(D…
4756     assert(posInfInterval.intersection(NegInfInterval!Date(Date(2010, 7, 5))) ==
4757            Interval!Date(Date(2010, 7, 4), Date(2010, 7, 5)));
4758     assert(posInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 6))) ==
4759            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 6)));
4760     assert(posInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 7))) ==
4761            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)));
4762     assert(posInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 8))) ==
4763            Interval!Date(Date(2010, 7, 4), Date(2012, 1, 8)));
4765     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4766     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4767     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4768     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4769     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4770     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4771     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4772     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4802 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(Interval!Date(Date(1990, 7, 6), Date(200…
4803            Interval!Date(Date(1996, 1, 2), Date(2000, 8, 2)));
4804 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(Interval!Date(Date(1999, 1, 12), Date(20…
4805            Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17)));
4807 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(PosInfInterval!Date(Date(1990, 7, 6))) ==
4808            PosInfInterval!Date(Date(1996, 1, 2)));
4809 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(PosInfInterval!Date(Date(1999, 1, 12))) …
4810            PosInfInterval!Date(Date(1999, 1, 12)));
4812 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(NegInfInterval!Date(Date(1999, 7, 6))) ==
4813            Interval!Date(Date(1996, 1, 2), Date(1999, 7, 6)));
4814 …assert(PosInfInterval!Date(Date(1996, 1, 2)).intersection(NegInfInterval!Date(Date(2013, 1, 12))) …
4815            Interval!Date(Date(1996, 1, 2), Date(2013, 1, 12)));
4823     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4825 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4830 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4833     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
4834     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
4835     assert(posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
4836     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
4837     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
4838     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
4839     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
4840     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
4841     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
4842     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
4843     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
4844     assert(!posInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
4846     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 3))));
4847     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 4))));
4848     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 5))));
4849     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 6))));
4850     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 7))));
4851     assert(!posInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 8))));
4853     assert(!PosInfInterval!Date(Date(2010, 7, 3)).isAdjacent(posInfInterval));
4854     assert(!PosInfInterval!Date(Date(2010, 7, 4)).isAdjacent(posInfInterval));
4855     assert(!PosInfInterval!Date(Date(2010, 7, 5)).isAdjacent(posInfInterval));
4856     assert(!PosInfInterval!Date(Date(2012, 1, 6)).isAdjacent(posInfInterval));
4857     assert(!PosInfInterval!Date(Date(2012, 1, 7)).isAdjacent(posInfInterval));
4858     assert(!PosInfInterval!Date(Date(2012, 1, 8)).isAdjacent(posInfInterval));
4860     assert(!posInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 3))));
4861     assert(posInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 4))));
4862     assert(!posInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 5))));
4863     assert(!posInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 6))));
4864     assert(!posInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 7))));
4865     assert(!posInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 8))));
4867     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4868     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4869     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4870     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4871     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4872     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4873     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4874     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4904 …assert(PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent(Interval!Date(Date(1989, 3, 1), Date(1996,…
4905 …assert(!PosInfInterval!Date(Date(1999, 1, 12)).isAdjacent(Interval!Date(Date(1999, 1, 12), Date(20…
4907 …  assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent(PosInfInterval!Date(Date(1990, 1, 7))));
4908 …  assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent(PosInfInterval!Date(Date(1996, 1, 2))));
4910     assert(PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent(NegInfInterval!Date(Date(1996, 1, 2))));
4911 …  assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent(NegInfInterval!Date(Date(2000, 7, 1))));
4919     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4921 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
4926 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
4928 …Thrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 1), Date(2010, 7…
4931     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
4932            PosInfInterval!Date(Date(2010, 7, 1)));
4933     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
4934            PosInfInterval!Date(Date(2010, 7, 3)));
4935     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
4936            PosInfInterval!Date(Date(2010, 7, 3)));
4937     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
4938            PosInfInterval!Date(Date(2010, 7, 3)));
4939     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
4940            PosInfInterval!Date(Date(2010, 7, 3)));
4941     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
4942            PosInfInterval!Date(Date(2010, 7, 4)));
4943     assert(posInfInterval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
4944            PosInfInterval!Date(Date(2010, 7, 4)));
4945     assert(posInfInterval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
4946            PosInfInterval!Date(Date(2010, 7, 4)));
4947     assert(posInfInterval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
4948            PosInfInterval!Date(Date(2010, 7, 4)));
4949     assert(posInfInterval.merge(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
4950            PosInfInterval!Date(Date(2010, 7, 4)));
4951     assert(posInfInterval.merge(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))) ==
4952            PosInfInterval!Date(Date(2010, 7, 4)));
4954 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 3))) == PosInfInterval!Date(Date(201…
4955 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 4))) == PosInfInterval!Date(Date(201…
4956 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 5))) == PosInfInterval!Date(Date(201…
4957 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 6))) == PosInfInterval!Date(Date(201…
4958 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 7))) == PosInfInterval!Date(Date(201…
4959 …assert(posInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 8))) == PosInfInterval!Date(Date(201…
4961 …assert(PosInfInterval!Date(Date(2010, 7, 3)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4962 …assert(PosInfInterval!Date(Date(2010, 7, 4)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4963 …assert(PosInfInterval!Date(Date(2010, 7, 5)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4964 …assert(PosInfInterval!Date(Date(2012, 1, 6)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4965 …assert(PosInfInterval!Date(Date(2012, 1, 7)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4966 …assert(PosInfInterval!Date(Date(2012, 1, 8)).merge(posInfInterval) == PosInfInterval!Date(Date(201…
4968     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 3)))));
4969     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 4)))));
4970     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 5)))));
4971     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 6)))));
4972     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 7)))));
4973     static assert(!__traits(compiles, posInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 8)))));
4975     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4976     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4977     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
4978     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4979     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
4980     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4981     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
4982     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
5012 …assert(PosInfInterval!Date(Date(1996, 1, 2)).merge(Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2…
5013            PosInfInterval!Date(Date(1990, 7, 6)));
5014 …assert(PosInfInterval!Date(Date(1996, 1, 2)).merge(Interval!Date(Date(1999, 1, 12), Date(2011, 9, …
5015            PosInfInterval!Date(Date(1996, 1, 2)));
5017     assert(PosInfInterval!Date(Date(1996, 1, 2)).merge(PosInfInterval!Date(Date(1990, 7, 6))) ==
5018            PosInfInterval!Date(Date(1990, 7, 6)));
5019     assert(PosInfInterval!Date(Date(1996, 1, 2)).merge(PosInfInterval!Date(Date(1999, 1, 12))) ==
5020            PosInfInterval!Date(Date(1996, 1, 2)));
5028     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5030 …static void testInterval(scope const PosInfInterval!Date posInfInterval, scope const Interval!Date…
5035 …assertThrown!DateTimeException(testInterval(posInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
5038     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))) ==
5039            PosInfInterval!Date(Date(2010, 7, 1)));
5040     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
5041            PosInfInterval!Date(Date(2010, 7, 1)));
5042     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
5043            PosInfInterval!Date(Date(2010, 7, 3)));
5044     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
5045            PosInfInterval!Date(Date(2010, 7, 3)));
5046     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
5047            PosInfInterval!Date(Date(2010, 7, 3)));
5048     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
5049            PosInfInterval!Date(Date(2010, 7, 3)));
5050     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
5051            PosInfInterval!Date(Date(2010, 7, 4)));
5052     assert(posInfInterval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
5053            PosInfInterval!Date(Date(2010, 7, 4)));
5054     assert(posInfInterval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
5055            PosInfInterval!Date(Date(2010, 7, 4)));
5056     assert(posInfInterval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
5057            PosInfInterval!Date(Date(2010, 7, 4)));
5058     assert(posInfInterval.span(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
5059            PosInfInterval!Date(Date(2010, 7, 4)));
5060     assert(posInfInterval.span(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))) ==
5061            PosInfInterval!Date(Date(2010, 7, 4)));
5063 …assert(posInfInterval.span(PosInfInterval!Date(Date(2010, 7, 3))) == PosInfInterval!Date(Date(2010…
5064 …assert(posInfInterval.span(PosInfInterval!Date(Date(2010, 7, 4))) == PosInfInterval!Date(Date(2010…
5065 …assert(posInfInterval.span(PosInfInterval!Date(Date(2010, 7, 5))) == PosInfInterval!Date(Date(2010…
5066 …assert(posInfInterval.span(PosInfInterval!Date(Date(2012, 1, 6))) == PosInfInterval!Date(Date(2010…
5067 …assert(posInfInterval.span(PosInfInterval!Date(Date(2012, 1, 7))) == PosInfInterval!Date(Date(2010…
5068 …assert(posInfInterval.span(PosInfInterval!Date(Date(2012, 1, 8))) == PosInfInterval!Date(Date(2010…
5070 …assert(PosInfInterval!Date(Date(2010, 7, 3)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5071 …assert(PosInfInterval!Date(Date(2010, 7, 4)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5072 …assert(PosInfInterval!Date(Date(2010, 7, 5)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5073 …assert(PosInfInterval!Date(Date(2012, 1, 6)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5074 …assert(PosInfInterval!Date(Date(2012, 1, 7)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5075 …assert(PosInfInterval!Date(Date(2012, 1, 8)).span(posInfInterval) == PosInfInterval!Date(Date(2010…
5077     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2010, 7, 3)))));
5078     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2010, 7, 4)))));
5079     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2010, 7, 5)))));
5080     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2012, 1, 6)))));
5081     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2012, 1, 7)))));
5082     static assert(!__traits(compiles, posInfInterval.span(NegInfInterval!Date(Date(2012, 1, 8)))));
5084     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
5085     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
5086     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
5087     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5088     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5089     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
5090     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
5091     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
5121 …assert(PosInfInterval!Date(Date(1996, 1, 2)).span(Interval!Date(Date(500, 8, 9), Date(1602, 1, 31)…
5122            PosInfInterval!Date(Date(500, 8, 9)));
5123 …assert(PosInfInterval!Date(Date(1996, 1, 2)).span(Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2)…
5124            PosInfInterval!Date(Date(1990, 7, 6)));
5125 …assert(PosInfInterval!Date(Date(1996, 1, 2)).span(Interval!Date(Date(1999, 1, 12), Date(2011, 9, 1…
5126            PosInfInterval!Date(Date(1996, 1, 2)));
5128     assert(PosInfInterval!Date(Date(1996, 1, 2)).span(PosInfInterval!Date(Date(1990, 7, 6))) ==
5129            PosInfInterval!Date(Date(1990, 7, 6)));
5130     assert(PosInfInterval!Date(Date(1996, 1, 2)).span(PosInfInterval!Date(Date(1999, 1, 12))) ==
5131            PosInfInterval!Date(Date(1996, 1, 2)));
5139     auto interval = PosInfInterval!Date(Date(2010, 7, 4));
5148     testInterval(interval, dur!"days"(22), PosInfInterval!Date(Date(2010, 7, 26)));
5149     testInterval(interval, dur!"days"(-22), PosInfInterval!Date(Date(2010, 6, 12)));
5151     const cInterval = PosInfInterval!Date(Date(2010, 7, 4));
5152     immutable iInterval = PosInfInterval!Date(Date(2010, 7, 4));
5157     auto interval1 = PosInfInterval!Date(Date(1996, 1, 2));
5158     auto interval2 = PosInfInterval!Date(Date(1996, 1, 2));
5161     assert(interval1 == PosInfInterval!Date(Date(1996, 2, 21)));
5164     assert(interval2 == PosInfInterval!Date(Date(1995, 11, 13)));
5173         auto interval = PosInfInterval!Date(Date(2010, 7, 4));
5182         testInterval(interval, 5, 0, AllowDayOverflow.yes, PosInfInterval!Date(Date(2015, 7, 4)));
5183         testInterval(interval, -5, 0, AllowDayOverflow.yes, PosInfInterval!Date(Date(2005, 7, 4)));
5185         auto interval2 = PosInfInterval!Date(Date(2000, 1, 29));
5187         testInterval(interval2, 1, 1, AllowDayOverflow.yes, PosInfInterval!Date(Date(2001, 3, 1)));
5188 …     testInterval(interval2, 1, -1, AllowDayOverflow.yes, PosInfInterval!Date(Date(2000, 12, 29)));
5189 …    testInterval(interval2, -1, -1, AllowDayOverflow.yes, PosInfInterval!Date(Date(1998, 12, 29)));
5190         testInterval(interval2, -1, 1, AllowDayOverflow.yes, PosInfInterval!Date(Date(1999, 3, 1)));
5192         testInterval(interval2, 1, 1, AllowDayOverflow.no, PosInfInterval!Date(Date(2001, 2, 28)));
5193 …      testInterval(interval2, 1, -1, AllowDayOverflow.no, PosInfInterval!Date(Date(2000, 12, 29)));
5194 …     testInterval(interval2, -1, -1, AllowDayOverflow.no, PosInfInterval!Date(Date(1998, 12, 29)));
5195         testInterval(interval2, -1, 1, AllowDayOverflow.no, PosInfInterval!Date(Date(1999, 2, 28)));
5198     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5199     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5204     auto interval1 = PosInfInterval!Date(Date(1996, 1, 2));
5205     auto interval2 = PosInfInterval!Date(Date(1996, 1, 2));
5208     assert(interval1 == PosInfInterval!Date(Date(1998, 1, 2)));
5211     assert(interval2 == PosInfInterval!Date(Date(1994, 1, 2)));
5219     auto interval = PosInfInterval!Date(Date(2000, 7, 4));
5228     testInterval(interval, dur!"days"(22), PosInfInterval!Date(Date(2000, 6, 12)));
5229     testInterval(interval, dur!"days"(-22), PosInfInterval!Date(Date(2000, 7, 26)));
5231     const cInterval = PosInfInterval!Date(Date(2010, 7, 4));
5232     immutable iInterval = PosInfInterval!Date(Date(2010, 7, 4));
5237     auto interval1 = PosInfInterval!Date(Date(1996, 1, 2));
5238     auto interval2 = PosInfInterval!Date(Date(1996, 1, 2));
5241     assert(interval1 == PosInfInterval!Date(Date(1995, 12, 31)));
5244     assert(interval2 == PosInfInterval!Date(Date(1996, 1, 4)));
5253         auto interval = PosInfInterval!Date(Date(2000, 7, 4));
5262         testInterval(interval, 5, 0, AllowDayOverflow.yes, PosInfInterval!Date(Date(1995, 7, 4)));
5263         testInterval(interval, -5, 0, AllowDayOverflow.yes, PosInfInterval!Date(Date(2005, 7, 4)));
5265         auto interval2 = PosInfInterval!Date(Date(2000, 1, 29));
5267 …      testInterval(interval2, 1, 1, AllowDayOverflow.yes, PosInfInterval!Date(Date(1998, 12, 29)));
5268         testInterval(interval2, 1, -1, AllowDayOverflow.yes, PosInfInterval!Date(Date(1999, 3, 1)));
5269 …      testInterval(interval2, -1, -1, AllowDayOverflow.yes, PosInfInterval!Date(Date(2001, 3, 1)));
5270 …     testInterval(interval2, -1, 1, AllowDayOverflow.yes, PosInfInterval!Date(Date(2000, 12, 29)));
5272         testInterval(interval2, 1, 1, AllowDayOverflow.no, PosInfInterval!Date(Date(1998, 12, 29)));
5273         testInterval(interval2, 1, -1, AllowDayOverflow.no, PosInfInterval!Date(Date(1999, 2, 28)));
5274 …      testInterval(interval2, -1, -1, AllowDayOverflow.no, PosInfInterval!Date(Date(2001, 2, 28)));
5275 …      testInterval(interval2, -1, 1, AllowDayOverflow.no, PosInfInterval!Date(Date(2000, 12, 29)));
5278     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5279     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5284     auto interval1 = PosInfInterval!Date(Date(1996, 1, 2));
5285     auto interval2 = PosInfInterval!Date(Date(1996, 1, 2));
5288     assert(interval1 == PosInfInterval!Date(Date(1994, 1, 2)));
5291     assert(interval2 == PosInfInterval!Date(Date(1998, 1, 2)));
5299     auto posInfInterval = PosInfInterval!Date(Date(2010, 9, 19));
5301     static void testInterval(PosInfInterval!Date posInfInterval)
5303         posInfInterval.fwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).popFront();
5308 …assert(PosInfInterval!Date(Date(2010, 9, 12)).fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).front ==
5309            Date(2010, 9, 12));
5311 …assert(PosInfInterval!Date(Date(2010, 9, 12)).fwdRange(everyDayOfWeek!Date(DayOfWeek.fri), PopFirs…
5312            Date(2010, 9, 17));
5315     auto interval = PosInfInterval!Date(Date(2010, 9, 1));
5316     auto func = delegate (scope const Date date)  in delegate()
5324 …assert(range.front == Date(2010, 9, 1)); //An odd day. Using PopFirst.yes would have made this Dat…
5327     assert(range.front == Date(2010, 9, 2));
5330     assert(range.front == Date(2010, 9, 4));
5333     assert(range.front == Date(2010, 9, 6));
5336     assert(range.front == Date(2010, 9, 8));
5341     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5342     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5343     assert(!cPosInfInterval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
5344     assert(!iPosInfInterval.fwdRange(everyDayOfWeek!Date(DayOfWeek.fri)).empty);
5351     assert(PosInfInterval!Date(Date(2010, 7, 4)).toString() == "[2010-Jul-04 - ∞)");
5353     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5354     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
5379 auto interval = PosInfInterval!Date(Date(1996, 1, 2));  in NegInfInterval()
5415 assert(NegInfInterval!Date(Date(2012, 3, 1)).end == Date(2012, 3, 1));  in NegInfInterval()
6405     NegInfInterval!Date(Date.init);
6416     assert(NegInfInterval!Date(Date(2010, 1, 1)).end == Date(2010, 1, 1));
6417     assert(NegInfInterval!Date(Date(2010, 1, 1)).end == Date(2010, 1, 1));
6418     assert(NegInfInterval!Date(Date(1998, 1, 1)).end == Date(1998, 1, 1));
6420     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6421     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6422     assert(cNegInfInterval.end != Date.init);
6423     assert(iNegInfInterval.end != Date.init);
6426     assert(NegInfInterval!Date(Date(2012, 3, 1)).end == Date(2012, 3, 1));
6435     assert(!NegInfInterval!Date(Date(2010, 1, 1)).empty);
6440     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6441     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6446     assert(!NegInfInterval!Date(Date(1996, 1, 2)).empty);
6454     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6456     assert(negInfInterval.contains(Date(2009, 7, 4)));
6457     assert(negInfInterval.contains(Date(2010, 7, 3)));
6458     assert(negInfInterval.contains(Date(2010, 7, 4)));
6459     assert(negInfInterval.contains(Date(2010, 7, 5)));
6460     assert(negInfInterval.contains(Date(2011, 7, 1)));
6461     assert(negInfInterval.contains(Date(2012, 1, 6)));
6462     assert(!negInfInterval.contains(Date(2012, 1, 7)));
6463     assert(!negInfInterval.contains(Date(2012, 1, 8)));
6464     assert(!negInfInterval.contains(Date(2013, 1, 7)));
6466     const cdate = Date(2010, 7, 6);
6467     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6468     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6474     assert(NegInfInterval!Date(Date(2012, 3, 1)).contains(Date(1994, 12, 24)));
6475     assert(NegInfInterval!Date(Date(2012, 3, 1)).contains(Date(2000, 1, 5)));
6476     assert(!NegInfInterval!Date(Date(2012, 3, 1)).contains(Date(2012, 3, 1)));
6484     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6486 …static void testInterval(scope const NegInfInterval!Date negInfInterval, scope const Interval!Date…
6491 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
6494     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
6495     assert(!negInfInterval.contains(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
6496     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
6497     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
6498     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
6499     assert(!negInfInterval.contains(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
6500     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
6501     assert(negInfInterval.contains(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
6502     assert(negInfInterval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
6503     assert(!negInfInterval.contains(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
6504     assert(!negInfInterval.contains(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
6505     assert(!negInfInterval.contains(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
6507     assert(negInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 3))));
6508     assert(negInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 4))));
6509     assert(negInfInterval.contains(NegInfInterval!Date(Date(2010, 7, 5))));
6510     assert(negInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 6))));
6511     assert(negInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 7))));
6512     assert(!negInfInterval.contains(NegInfInterval!Date(Date(2012, 1, 8))));
6514     assert(!NegInfInterval!Date(Date(2010, 7, 3)).contains(negInfInterval));
6515     assert(!NegInfInterval!Date(Date(2010, 7, 4)).contains(negInfInterval));
6516     assert(!NegInfInterval!Date(Date(2010, 7, 5)).contains(negInfInterval));
6517     assert(!NegInfInterval!Date(Date(2012, 1, 6)).contains(negInfInterval));
6518     assert(NegInfInterval!Date(Date(2012, 1, 7)).contains(negInfInterval));
6519     assert(NegInfInterval!Date(Date(2012, 1, 8)).contains(negInfInterval));
6521     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 3))));
6522     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 4))));
6523     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2010, 7, 5))));
6524     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 6))));
6525     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 7))));
6526     assert(!negInfInterval.contains(PosInfInterval!Date(Date(2012, 1, 8))));
6528     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6529     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6530     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6531     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6532     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6533     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6534     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6535     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6565 …assert(NegInfInterval!Date(Date(2012, 3, 1)).contains(Interval!Date(Date(1990, 7, 6), Date(2000, 8…
6566 …assert(NegInfInterval!Date(Date(2012, 3, 1)).contains(Interval!Date(Date(1999, 1, 12), Date(2011, …
6567 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).contains(Interval!Date(Date(1998, 2, 28), Date(2013,…
6569     assert(!NegInfInterval!Date(Date(2012, 3, 1)).contains(PosInfInterval!Date(Date(1999, 5, 4))));
6571     assert(NegInfInterval!Date(Date(2012, 3, 1)).contains(NegInfInterval!Date(Date(1996, 5, 4))));
6572     assert(!NegInfInterval!Date(Date(2012, 3, 1)).contains(NegInfInterval!Date(Date(2013, 7, 9))));
6580     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6582     assert(!negInfInterval.isBefore(Date(2009, 7, 4)));
6583     assert(!negInfInterval.isBefore(Date(2010, 7, 3)));
6584     assert(!negInfInterval.isBefore(Date(2010, 7, 4)));
6585     assert(!negInfInterval.isBefore(Date(2010, 7, 5)));
6586     assert(!negInfInterval.isBefore(Date(2011, 7, 1)));
6587     assert(!negInfInterval.isBefore(Date(2012, 1, 6)));
6588     assert(negInfInterval.isBefore(Date(2012, 1, 7)));
6589     assert(negInfInterval.isBefore(Date(2012, 1, 8)));
6590     assert(negInfInterval.isBefore(Date(2013, 1, 7)));
6592     const cdate = Date(2010, 7, 6);
6593     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6594     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6600     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Date(1994, 12, 24)));
6601     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Date(2000, 1, 5)));
6602     assert(NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Date(2012, 3, 1)));
6610     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6612 …static void testInterval(scope const NegInfInterval!Date negInfInterval, scope const Interval!Date…
6617 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
6620     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
6621     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
6622     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
6623     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
6624     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
6625     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
6626     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
6627     assert(!negInfInterval.isBefore(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
6628     assert(!negInfInterval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
6629     assert(!negInfInterval.isBefore(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
6630     assert(negInfInterval.isBefore(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
6631     assert(negInfInterval.isBefore(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
6633     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 3))));
6634     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 4))));
6635     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2010, 7, 5))));
6636     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 6))));
6637     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 7))));
6638     assert(!negInfInterval.isBefore(NegInfInterval!Date(Date(2012, 1, 8))));
6640     assert(!NegInfInterval!Date(Date(2010, 7, 3)).isBefore(negInfInterval));
6641     assert(!NegInfInterval!Date(Date(2010, 7, 4)).isBefore(negInfInterval));
6642     assert(!NegInfInterval!Date(Date(2010, 7, 5)).isBefore(negInfInterval));
6643     assert(!NegInfInterval!Date(Date(2012, 1, 6)).isBefore(negInfInterval));
6644     assert(!NegInfInterval!Date(Date(2012, 1, 7)).isBefore(negInfInterval));
6645     assert(!NegInfInterval!Date(Date(2012, 1, 8)).isBefore(negInfInterval));
6647     assert(!negInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 3))));
6648     assert(!negInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 4))));
6649     assert(!negInfInterval.isBefore(PosInfInterval!Date(Date(2010, 7, 5))));
6650     assert(!negInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 6))));
6651     assert(negInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 7))));
6652     assert(negInfInterval.isBefore(PosInfInterval!Date(Date(2012, 1, 8))));
6654     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6655     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6656     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6657     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6658     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6659     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6660     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6661     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6691 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Interval!Date(Date(1990, 7, 6), Date(2000, …
6692 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Interval!Date(Date(1999, 1, 12), Date(2011,…
6693 …assert(NegInfInterval!Date(Date(2012, 3, 1)).isBefore(Interval!Date(Date(2022, 10, 19), Date(2027,…
6695     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(PosInfInterval!Date(Date(1999, 5, 4))));
6696     assert(NegInfInterval!Date(Date(2012, 3, 1)).isBefore(PosInfInterval!Date(Date(2012, 3, 1))));
6698     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(NegInfInterval!Date(Date(1996, 5, 4))));
6699     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isBefore(NegInfInterval!Date(Date(2013, 7, 9))));
6707     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6709     assert(!negInfInterval.isAfter(Date(2009, 7, 4)));
6710     assert(!negInfInterval.isAfter(Date(2010, 7, 3)));
6711     assert(!negInfInterval.isAfter(Date(2010, 7, 4)));
6712     assert(!negInfInterval.isAfter(Date(2010, 7, 5)));
6713     assert(!negInfInterval.isAfter(Date(2011, 7, 1)));
6714     assert(!negInfInterval.isAfter(Date(2012, 1, 6)));
6715     assert(!negInfInterval.isAfter(Date(2012, 1, 7)));
6716     assert(!negInfInterval.isAfter(Date(2012, 1, 8)));
6717     assert(!negInfInterval.isAfter(Date(2013, 1, 7)));
6719     const cdate = Date(2010, 7, 6);
6720     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6721     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6732     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6734 …static void testInterval(scope const NegInfInterval!Date negInfInterval, scope const Interval!Date…
6739 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
6742     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
6743     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
6744     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
6745     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
6746     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
6747     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
6748     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
6749     assert(!negInfInterval.isAfter(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
6750     assert(!negInfInterval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
6751     assert(!negInfInterval.isAfter(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
6752     assert(!negInfInterval.isAfter(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
6753     assert(!negInfInterval.isAfter(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
6755     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 3))));
6756     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 4))));
6757     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2010, 7, 5))));
6758     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 6))));
6759     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 7))));
6760     assert(!negInfInterval.isAfter(NegInfInterval!Date(Date(2012, 1, 8))));
6762     assert(!NegInfInterval!Date(Date(2010, 7, 3)).isAfter(negInfInterval));
6763     assert(!NegInfInterval!Date(Date(2010, 7, 4)).isAfter(negInfInterval));
6764     assert(!NegInfInterval!Date(Date(2010, 7, 5)).isAfter(negInfInterval));
6765     assert(!NegInfInterval!Date(Date(2012, 1, 6)).isAfter(negInfInterval));
6766     assert(!NegInfInterval!Date(Date(2012, 1, 7)).isAfter(negInfInterval));
6767     assert(!NegInfInterval!Date(Date(2012, 1, 8)).isAfter(negInfInterval));
6769     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 3))));
6770     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 4))));
6771     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2010, 7, 5))));
6772     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 6))));
6773     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 7))));
6774     assert(!negInfInterval.isAfter(PosInfInterval!Date(Date(2012, 1, 8))));
6776     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6777     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6778     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6779     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6780     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6781     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6782     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6783     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6813     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Date(1994, 12, 24)));
6814     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Date(2000, 1, 5)));
6815     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Date(2012, 3, 1)));
6817 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Interval!Date(Date(1990, 7, 6), Date(2000, 8…
6818 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Interval!Date(Date(1999, 1, 12), Date(2011, …
6819 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(Interval!Date(Date(2022, 10, 19), Date(2027,…
6821     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(PosInfInterval!Date(Date(1999, 5, 4))));
6822     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(PosInfInterval!Date(Date(2012, 3, 1))));
6824     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(NegInfInterval!Date(Date(1996, 5, 4))));
6825     assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAfter(NegInfInterval!Date(Date(2013, 7, 9))));
6833     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6835 …static void testInterval(scope const NegInfInterval!Date negInfInterval, scope const Interval!Date…
6840 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
6843     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
6844     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
6845     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
6846     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
6847     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
6848     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
6849     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
6850     assert(negInfInterval.intersects(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
6851     assert(negInfInterval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
6852     assert(negInfInterval.intersects(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
6853     assert(!negInfInterval.intersects(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
6854     assert(!negInfInterval.intersects(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
6856     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 3))));
6857     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 4))));
6858     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2010, 7, 5))));
6859     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 6))));
6860     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 7))));
6861     assert(negInfInterval.intersects(NegInfInterval!Date(Date(2012, 1, 8))));
6863     assert(NegInfInterval!Date(Date(2010, 7, 3)).intersects(negInfInterval));
6864     assert(NegInfInterval!Date(Date(2010, 7, 4)).intersects(negInfInterval));
6865     assert(NegInfInterval!Date(Date(2010, 7, 5)).intersects(negInfInterval));
6866     assert(NegInfInterval!Date(Date(2012, 1, 6)).intersects(negInfInterval));
6867     assert(NegInfInterval!Date(Date(2012, 1, 7)).intersects(negInfInterval));
6868     assert(NegInfInterval!Date(Date(2012, 1, 8)).intersects(negInfInterval));
6870     assert(negInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 3))));
6871     assert(negInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 4))));
6872     assert(negInfInterval.intersects(PosInfInterval!Date(Date(2010, 7, 5))));
6873     assert(negInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 6))));
6874     assert(!negInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 7))));
6875     assert(!negInfInterval.intersects(PosInfInterval!Date(Date(2012, 1, 8))));
6877     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6878     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6879     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6880     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6881     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6882     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6883     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6884     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6914 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersects(Interval!Date(Date(1990, 7, 6), Date(2000,…
6915 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersects(Interval!Date(Date(1999, 1, 12), Date(2011…
6916 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).intersects(Interval!Date(Date(2022, 10, 19), Date(20…
6918     assert(NegInfInterval!Date(Date(2012, 3, 1)).intersects(PosInfInterval!Date(Date(1999, 5, 4))));
6919 …  assert(!NegInfInterval!Date(Date(2012, 3, 1)).intersects(PosInfInterval!Date(Date(2012, 3, 1))));
6921     assert(NegInfInterval!Date(Date(2012, 3, 1)).intersects(NegInfInterval!Date(Date(1996, 5, 4))));
6922     assert(NegInfInterval!Date(Date(2012, 3, 1)).intersects(NegInfInterval!Date(Date(2013, 7, 9))));
6930     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6937 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
6939 …Thrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2012, 1, 7), Date(2012, 1…
6940 …Thrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2012, 1, 8), Date(2012, 1…
6942 …assertThrown!DateTimeException(testInterval(negInfInterval, PosInfInterval!Date(Date(2012, 1, 7)))…
6943 …assertThrown!DateTimeException(testInterval(negInfInterval, PosInfInterval!Date(Date(2012, 1, 8)))…
6946     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))) ==
6947            Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3)));
6948     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
6949            Interval!Date(Date(2010, 7, 1), Date(2012, 1, 7)));
6950     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
6951            Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4)));
6952     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
6953            Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5)));
6954     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
6955            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
6956     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
6957            Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7)));
6958     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
6959            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6)));
6960     assert(negInfInterval.intersection(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
6961            Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7)));
6962     assert(negInfInterval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
6963            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
6964     assert(negInfInterval.intersection(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
6965            Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7)));
6967 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2010, 7, 3))) == NegInfInterval!Date(D…
6968 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2010, 7, 4))) == NegInfInterval!Date(D…
6969 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2010, 7, 5))) == NegInfInterval!Date(D…
6970 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 6))) == NegInfInterval!Date(D…
6971 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 7))) == NegInfInterval!Date(D…
6972 …assert(negInfInterval.intersection(NegInfInterval!Date(Date(2012, 1, 8))) == NegInfInterval!Date(D…
6974 …assert(NegInfInterval!Date(Date(2010, 7, 3)).intersection(negInfInterval) == NegInfInterval!Date(D…
6975 …assert(NegInfInterval!Date(Date(2010, 7, 4)).intersection(negInfInterval) == NegInfInterval!Date(D…
6976 …assert(NegInfInterval!Date(Date(2010, 7, 5)).intersection(negInfInterval) == NegInfInterval!Date(D…
6977 …assert(NegInfInterval!Date(Date(2012, 1, 6)).intersection(negInfInterval) == NegInfInterval!Date(D…
6978 …assert(NegInfInterval!Date(Date(2012, 1, 7)).intersection(negInfInterval) == NegInfInterval!Date(D…
6979 …assert(NegInfInterval!Date(Date(2012, 1, 8)).intersection(negInfInterval) == NegInfInterval!Date(D…
6981     assert(negInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 3))) ==
6982            Interval!Date(Date(2010, 7, 3), Date(2012, 1 ,7)));
6983     assert(negInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 4))) ==
6984            Interval!Date(Date(2010, 7, 4), Date(2012, 1 ,7)));
6985     assert(negInfInterval.intersection(PosInfInterval!Date(Date(2010, 7, 5))) ==
6986            Interval!Date(Date(2010, 7, 5), Date(2012, 1 ,7)));
6987     assert(negInfInterval.intersection(PosInfInterval!Date(Date(2012, 1, 6))) ==
6988            Interval!Date(Date(2012, 1, 6), Date(2012, 1 ,7)));
6990     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6991     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6992     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
6993     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6994     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6995     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
6996     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
6997     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7027 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(Interval!Date(Date(1990, 7, 6), Date(200…
7028            Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2)));
7029 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(Interval!Date(Date(1999, 1, 12), Date(20…
7030            Interval!Date(Date(1999, 1, 12), Date(2012, 3, 1)));
7032 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(PosInfInterval!Date(Date(1990, 7, 6))) ==
7033            Interval!Date(Date(1990, 7, 6), Date(2012, 3, 1)));
7034 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(PosInfInterval!Date(Date(1999, 1, 12))) …
7035            Interval!Date(Date(1999, 1, 12), Date(2012, 3, 1)));
7037 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(NegInfInterval!Date(Date(1999, 7, 6))) ==
7038            NegInfInterval!Date(Date(1999, 7, 6)));
7039 …assert(NegInfInterval!Date(Date(2012, 3, 1)).intersection(NegInfInterval!Date(Date(2013, 1, 12))) …
7040            NegInfInterval!Date(Date(2012, 3, 1)));
7048     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7050 …static void testInterval(scope const NegInfInterval!Date negInfInterval, scope const Interval!Date…
7055 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
7058     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))));
7059     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))));
7060     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))));
7061     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))));
7062     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))));
7063     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))));
7064     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))));
7065     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))));
7066     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))));
7067     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))));
7068     assert(negInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))));
7069     assert(!negInfInterval.isAdjacent(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))));
7071     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 3))));
7072     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 4))));
7073     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2010, 7, 5))));
7074     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 6))));
7075     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 7))));
7076     assert(!negInfInterval.isAdjacent(NegInfInterval!Date(Date(2012, 1, 8))));
7078     assert(!NegInfInterval!Date(Date(2010, 7, 3)).isAdjacent(negInfInterval));
7079     assert(!NegInfInterval!Date(Date(2010, 7, 4)).isAdjacent(negInfInterval));
7080     assert(!NegInfInterval!Date(Date(2010, 7, 5)).isAdjacent(negInfInterval));
7081     assert(!NegInfInterval!Date(Date(2012, 1, 6)).isAdjacent(negInfInterval));
7082     assert(!NegInfInterval!Date(Date(2012, 1, 7)).isAdjacent(negInfInterval));
7083     assert(!NegInfInterval!Date(Date(2012, 1, 8)).isAdjacent(negInfInterval));
7085     assert(!negInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 3))));
7086     assert(!negInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 4))));
7087     assert(!negInfInterval.isAdjacent(PosInfInterval!Date(Date(2010, 7, 5))));
7088     assert(!negInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 6))));
7089     assert(negInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 7))));
7090     assert(!negInfInterval.isAdjacent(PosInfInterval!Date(Date(2012, 1, 8))));
7092     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7093     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7094     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7095     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7096     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7097     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7098     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7099     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7129 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(Interval!Date(Date(1990, 7, 6), Date(2000…
7130 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(Interval!Date(Date(1999, 1, 12), Date(201…
7131 …assert(NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(Interval!Date(Date(2012, 3, 1), Date(2019,…
7132 …assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(Interval!Date(Date(2022, 10, 19), Date(20…
7134 …  assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(PosInfInterval!Date(Date(1999, 5, 4))));
7135     assert(NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(PosInfInterval!Date(Date(2012, 3, 1))));
7137 …  assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(NegInfInterval!Date(Date(1996, 5, 4))));
7138 …  assert(!NegInfInterval!Date(Date(2012, 3, 1)).isAdjacent(NegInfInterval!Date(Date(2012, 3, 1))));
7146     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7153 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
7155 …Thrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2012, 1, 8), Date(2012, 1…
7158     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))) ==
7159            NegInfInterval!Date(Date(2012, 1, 7)));
7160     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
7161            NegInfInterval!Date(Date(2013, 7, 3)));
7162     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
7163            NegInfInterval!Date(Date(2012, 1, 7)));
7164     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
7165            NegInfInterval!Date(Date(2012, 1, 7)));
7166     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
7167            NegInfInterval!Date(Date(2012, 1, 7)));
7168     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
7169            NegInfInterval!Date(Date(2012, 1, 8)));
7170     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
7171            NegInfInterval!Date(Date(2012, 1, 7)));
7172     assert(negInfInterval.merge(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
7173            NegInfInterval!Date(Date(2012, 1, 7)));
7174     assert(negInfInterval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
7175            NegInfInterval!Date(Date(2012, 1, 7)));
7176     assert(negInfInterval.merge(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
7177            NegInfInterval!Date(Date(2012, 1, 8)));
7178     assert(negInfInterval.merge(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
7179            NegInfInterval!Date(Date(2012, 1, 8)));
7181 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 3))) == NegInfInterval!Date(Date(201…
7182 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 4))) == NegInfInterval!Date(Date(201…
7183 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2010, 7, 5))) == NegInfInterval!Date(Date(201…
7184 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 6))) == NegInfInterval!Date(Date(201…
7185 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 7))) == NegInfInterval!Date(Date(201…
7186 …assert(negInfInterval.merge(NegInfInterval!Date(Date(2012, 1, 8))) == NegInfInterval!Date(Date(201…
7188 …assert(NegInfInterval!Date(Date(2010, 7, 3)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7189 …assert(NegInfInterval!Date(Date(2010, 7, 4)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7190 …assert(NegInfInterval!Date(Date(2010, 7, 5)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7191 …assert(NegInfInterval!Date(Date(2012, 1, 6)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7192 …assert(NegInfInterval!Date(Date(2012, 1, 7)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7193 …assert(NegInfInterval!Date(Date(2012, 1, 8)).merge(negInfInterval) == NegInfInterval!Date(Date(201…
7195     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 3)))));
7196     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 4)))));
7197     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2010, 7, 5)))));
7198     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 6)))));
7199     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 7)))));
7200     static assert(!__traits(compiles, negInfInterval.merge(PosInfInterval!Date(Date(2012, 1, 8)))));
7202     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7203     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7204     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7205     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7206     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7207     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7208     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7209     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7239 …assert(NegInfInterval!Date(Date(2012, 3, 1)).merge(Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2…
7240            NegInfInterval!Date(Date(2012, 3, 1)));
7241 …assert(NegInfInterval!Date(Date(2012, 3, 1)).merge(Interval!Date(Date(1999, 1, 12), Date(2015, 9, …
7242            NegInfInterval!Date(Date(2015, 9, 2)));
7244     assert(NegInfInterval!Date(Date(2012, 3, 1)).merge(NegInfInterval!Date(Date(1999, 7, 6))) ==
7245            NegInfInterval!Date(Date(2012, 3, 1)));
7246     assert(NegInfInterval!Date(Date(2012, 3, 1)).merge(NegInfInterval!Date(Date(2013, 1, 12))) ==
7247            NegInfInterval!Date(Date(2013, 1, 12)));
7255     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7262 …assertThrown!DateTimeException(testInterval(negInfInterval, Interval!Date(Date(2010, 7, 4), dur!"d…
7265     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 1), Date(2010, 7, 3))) ==
7266            NegInfInterval!Date(Date(2012, 1, 7)));
7267     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 1), Date(2013, 7, 3))) ==
7268            NegInfInterval!Date(Date(2013, 7, 3)));
7269     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 4))) ==
7270            NegInfInterval!Date(Date(2012, 1, 7)));
7271     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2010, 7, 5))) ==
7272            NegInfInterval!Date(Date(2012, 1, 7)));
7273     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 7))) ==
7274            NegInfInterval!Date(Date(2012, 1, 7)));
7275     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 3), Date(2012, 1, 8))) ==
7276            NegInfInterval!Date(Date(2012, 1, 8)));
7277     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 6))) ==
7278            NegInfInterval!Date(Date(2012, 1, 7)));
7279     assert(negInfInterval.span(Interval!Date(Date(2010, 7, 5), Date(2012, 1, 7))) ==
7280            NegInfInterval!Date(Date(2012, 1, 7)));
7281     assert(negInfInterval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 7))) ==
7282            NegInfInterval!Date(Date(2012, 1, 7)));
7283     assert(negInfInterval.span(Interval!Date(Date(2012, 1, 6), Date(2012, 1, 8))) ==
7284            NegInfInterval!Date(Date(2012, 1, 8)));
7285     assert(negInfInterval.span(Interval!Date(Date(2012, 1, 7), Date(2012, 1, 8))) ==
7286            NegInfInterval!Date(Date(2012, 1, 8)));
7287     assert(negInfInterval.span(Interval!Date(Date(2012, 1, 8), Date(2012, 1, 9))) ==
7288            NegInfInterval!Date(Date(2012, 1, 9)));
7290 …assert(negInfInterval.span(NegInfInterval!Date(Date(2010, 7, 3))) == NegInfInterval!Date(Date(2012…
7291 …assert(negInfInterval.span(NegInfInterval!Date(Date(2010, 7, 4))) == NegInfInterval!Date(Date(2012…
7292 …assert(negInfInterval.span(NegInfInterval!Date(Date(2010, 7, 5))) == NegInfInterval!Date(Date(2012…
7293 …assert(negInfInterval.span(NegInfInterval!Date(Date(2012, 1, 6))) == NegInfInterval!Date(Date(2012…
7294 …assert(negInfInterval.span(NegInfInterval!Date(Date(2012, 1, 7))) == NegInfInterval!Date(Date(2012…
7295 …assert(negInfInterval.span(NegInfInterval!Date(Date(2012, 1, 8))) == NegInfInterval!Date(Date(2012…
7297 …assert(NegInfInterval!Date(Date(2010, 7, 3)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7298 …assert(NegInfInterval!Date(Date(2010, 7, 4)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7299 …assert(NegInfInterval!Date(Date(2010, 7, 5)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7300 …assert(NegInfInterval!Date(Date(2012, 1, 6)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7301 …assert(NegInfInterval!Date(Date(2012, 1, 7)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7302 …assert(NegInfInterval!Date(Date(2012, 1, 8)).span(negInfInterval) == NegInfInterval!Date(Date(2012…
7304     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2010, 7, 3)))));
7305     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2010, 7, 4)))));
7306     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2010, 7, 5)))));
7307     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2012, 1, 6)))));
7308     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2012, 1, 7)))));
7309     static assert(!__traits(compiles, negInfInterval.span(PosInfInterval!Date(Date(2012, 1, 8)))));
7311     auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7312     const cInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7313     immutable iInterval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
7314     auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7315     const cPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7316     immutable iPosInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
7317     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7318     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7348 …assert(NegInfInterval!Date(Date(2012, 3, 1)).span(Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2)…
7349            NegInfInterval!Date(Date(2012, 3, 1)));
7350 …assert(NegInfInterval!Date(Date(2012, 3, 1)).span(Interval!Date(Date(1999, 1, 12), Date(2015, 9, 2…
7351            NegInfInterval!Date(Date(2015, 9, 2)));
7352 …assert(NegInfInterval!Date(Date(1600, 1, 7)).span(Interval!Date(Date(2012, 3, 11), Date(2017, 7, 1…
7353            NegInfInterval!Date(Date(2017, 7, 1)));
7355     assert(NegInfInterval!Date(Date(2012, 3, 1)).span(NegInfInterval!Date(Date(1999, 7, 6))) ==
7356            NegInfInterval!Date(Date(2012, 3, 1)));
7357     assert(NegInfInterval!Date(Date(2012, 3, 1)).span(NegInfInterval!Date(Date(2013, 1, 12))) ==
7358            NegInfInterval!Date(Date(2013, 1, 12)));
7366     auto interval = NegInfInterval!Date(Date(2012, 1, 7));
7375     testInterval(interval, dur!"days"(22), NegInfInterval!Date(Date(2012, 1, 29)));
7376     testInterval(interval, dur!"days"(-22), NegInfInterval!Date(Date(2011, 12, 16)));
7378     const cInterval = NegInfInterval!Date(Date(2012, 1, 7));
7379     immutable iInterval = NegInfInterval!Date(Date(2012, 1, 7));
7384     auto interval1 = NegInfInterval!Date(Date(2012, 4, 5));
7385     auto interval2 = NegInfInterval!Date(Date(2012, 4, 5));
7388     assert(interval1 == NegInfInterval!Date(Date(2012, 5, 25)));
7391     assert(interval2 == NegInfInterval!Date( Date(2012, 2, 15)));
7400         auto interval = NegInfInterval!Date(Date(2012, 1, 7));
7414         testInterval(interval, 5, 0, AllowDayOverflow.yes, NegInfInterval!Date(Date(2017, 1, 7)));
7415         testInterval(interval, -5, 0, AllowDayOverflow.yes, NegInfInterval!Date(Date(2007, 1, 7)));
7417         auto interval2 = NegInfInterval!Date(Date(2010, 5, 31));
7419         testInterval(interval2, 1, 1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2011, 7, 1)));
7420         testInterval(interval2, 1, -1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2011, 5, 1)));
7421 …      testInterval(interval2, -1, -1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2009, 5, 1)));
7422         testInterval(interval2, -1, 1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2009, 7, 1)));
7424         testInterval(interval2, 1, 1, AllowDayOverflow.no, NegInfInterval!Date(Date(2011, 6, 30)));
7425         testInterval(interval2, 1, -1, AllowDayOverflow.no, NegInfInterval!Date(Date(2011, 4, 30)));
7426 …      testInterval(interval2, -1, -1, AllowDayOverflow.no, NegInfInterval!Date(Date(2009, 4, 30)));
7427         testInterval(interval2, -1, 1, AllowDayOverflow.no, NegInfInterval!Date(Date(2009, 6, 30)));
7430     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7431     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7436     auto interval1 = NegInfInterval!Date(Date(2012, 3, 1));
7437     auto interval2 = NegInfInterval!Date(Date(2012, 3, 1));
7440     assert(interval1 == NegInfInterval!Date(Date(2014, 3, 1)));
7443     assert(interval2 == NegInfInterval!Date(Date(2010, 3, 1)));
7451     auto interval = NegInfInterval!Date(Date(2012, 1, 7));
7460     testInterval(interval, dur!"days"(22), NegInfInterval!Date(Date(2012, 1, 29)));
7461     testInterval(interval, dur!"days"(-22), NegInfInterval!Date(Date(2011, 12, 16)));
7463     const cInterval = NegInfInterval!Date(Date(2012, 1, 7));
7464     immutable iInterval = NegInfInterval!Date(Date(2012, 1, 7));
7469     auto interval1 = NegInfInterval!Date(Date(2012, 3, 1));
7470     auto interval2 = NegInfInterval!Date(Date(2012, 3, 1));
7473     assert(interval1 == NegInfInterval!Date(Date(2012, 3, 3)));
7476     assert(interval2 == NegInfInterval!Date(Date(2012, 2, 28)));
7485         auto interval = NegInfInterval!Date(Date(2012, 1, 7));
7494         testInterval(interval, 5, 0, AllowDayOverflow.yes, NegInfInterval!Date(Date(2017, 1, 7)));
7495         testInterval(interval, -5, 0, AllowDayOverflow.yes, NegInfInterval!Date(Date(2007, 1, 7)));
7497         auto interval2 = NegInfInterval!Date(Date(2010, 5, 31));
7499         testInterval(interval2, 1, 1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2011, 7, 1)));
7500         testInterval(interval2, 1, -1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2011, 5, 1)));
7501 …      testInterval(interval2, -1, -1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2009, 5, 1)));
7502         testInterval(interval2, -1, 1, AllowDayOverflow.yes, NegInfInterval!Date(Date(2009, 7, 1)));
7504         testInterval(interval2, 1, 1, AllowDayOverflow.no, NegInfInterval!Date(Date(2011, 6, 30)));
7505         testInterval(interval2, 1, -1, AllowDayOverflow.no, NegInfInterval!Date(Date(2011, 4, 30)));
7506 …      testInterval(interval2, -1, -1, AllowDayOverflow.no, NegInfInterval!Date(Date(2009, 4, 30)));
7507 …      testInterval(interval2, -1, 1, AllowDayOverflow.no, NegInfInterval!Date( Date(2009, 6, 30)));
7510     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7511     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7516     auto interval1 = NegInfInterval!Date(Date(2012, 3, 1));
7517     auto interval2 = NegInfInterval!Date(Date(2012, 3, 1));
7520     assert(interval1 == NegInfInterval!Date(Date(2014, 3, 1)));
7523     assert(interval2 == NegInfInterval!Date(Date(2010, 3, 1)));
7531     auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7533     static void testInterval(NegInfInterval!Date negInfInterval)
7535         negInfInterval.bwdRange(everyDayOfWeek!(Date, Direction.fwd)(DayOfWeek.fri)).popFront();
7540 …assert(NegInfInterval!Date(Date(2010, 10, 1)).bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfW…
7541            Date(2010, 10, 1));
7543     assert(NegInfInterval!Date(Date(2010, 10, 1)).bwdRange(
7544 …    everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri), PopFirst.yes).front == Date(2010, 9, 24));
7547     auto interval = NegInfInterval!Date(Date(2010, 9, 9));
7548     auto func = delegate (scope const Date date)  in delegate()
7557     assert(range.front == Date(2010, 9, 9));
7560     assert(range.front == Date(2010, 9, 8));
7563     assert(range.front == Date(2010, 9, 6));
7566     assert(range.front == Date(2010, 9, 4));
7569     assert(range.front == Date(2010, 9, 2));
7574     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7575     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7576     assert(!cNegInfInterval.bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).empty);
7577     assert(!iNegInfInterval.bwdRange(everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri)).empty);
7585     assert(NegInfInterval!Date(Date(2012, 1, 7)).toString() == "[-∞ - 2012-Jan-07)");
7587     const cNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7588     immutable iNegInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
7637     import std.datetime.date : Date, DayOfWeek;
7639     auto interval = Interval!Date(Date(2010, 9, 2), Date(2010, 9, 27));
7640     auto func = everyDayOfWeek!Date(DayOfWeek.mon);
7644     assert(range.front == Date(2010, 9, 2));
7647     assert(range.front == Date(2010, 9, 6));
7650     assert(range.front == Date(2010, 9, 13));
7653     assert(range.front == Date(2010, 9, 20));
7664     auto funcFwd = everyDayOfWeek!Date(DayOfWeek.mon);
7665     auto funcBwd = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.mon);
7667     assert(funcFwd(Date(2010, 8, 28)) == Date(2010, 8, 30));
7668     assert(funcFwd(Date(2010, 8, 29)) == Date(2010, 8, 30));
7669     assert(funcFwd(Date(2010, 8, 30)) == Date(2010, 9, 6));
7670     assert(funcFwd(Date(2010, 8, 31)) == Date(2010, 9, 6));
7671     assert(funcFwd(Date(2010, 9, 1)) == Date(2010, 9, 6));
7672     assert(funcFwd(Date(2010, 9, 2)) == Date(2010, 9, 6));
7673     assert(funcFwd(Date(2010, 9, 3)) == Date(2010, 9, 6));
7674     assert(funcFwd(Date(2010, 9, 4)) == Date(2010, 9, 6));
7675     assert(funcFwd(Date(2010, 9, 5)) == Date(2010, 9, 6));
7676     assert(funcFwd(Date(2010, 9, 6)) == Date(2010, 9, 13));
7677     assert(funcFwd(Date(2010, 9, 7)) == Date(2010, 9, 13));
7679     assert(funcBwd(Date(2010, 8, 28)) == Date(2010, 8, 23));
7680     assert(funcBwd(Date(2010, 8, 29)) == Date(2010, 8, 23));
7681     assert(funcBwd(Date(2010, 8, 30)) == Date(2010, 8, 23));
7682     assert(funcBwd(Date(2010, 8, 31)) == Date(2010, 8, 30));
7683     assert(funcBwd(Date(2010, 9, 1)) == Date(2010, 8, 30));
7684     assert(funcBwd(Date(2010, 9, 2)) == Date(2010, 8, 30));
7685     assert(funcBwd(Date(2010, 9, 3)) == Date(2010, 8, 30));
7686     assert(funcBwd(Date(2010, 9, 4)) == Date(2010, 8, 30));
7687     assert(funcBwd(Date(2010, 9, 5)) == Date(2010, 8, 30));
7688     assert(funcBwd(Date(2010, 9, 6)) == Date(2010, 8, 30));
7689     assert(funcBwd(Date(2010, 9, 7)) == Date(2010, 9, 6));
7996     import std.datetime.date : AllowDayOverflow, Date;
7998     auto interval = Interval!Date(Date(2010, 9, 2), Date(2025, 9, 27));
7999     auto func = everyDuration!Date(4, 1, AllowDayOverflow.yes, dur!"days"(2));
8003     assert(range.front == Date(2010, 9, 2));
8006     assert(range.front == Date(2014, 10, 4));
8009     assert(range.front == Date(2018, 11, 6));
8012     assert(range.front == Date(2022, 12, 8));
8024         auto funcFwd = everyDuration!Date(1, 2, AllowDayOverflow.yes, dur!"days"(3));
8025 …     auto funcBwd = everyDuration!(Date, Direction.bwd)(1, 2, AllowDayOverflow.yes, dur!"days"(3));
8027         assert(funcFwd(Date(2009, 12, 25)) == Date(2011, 2, 28));
8028         assert(funcFwd(Date(2009, 12, 26)) == Date(2011, 3, 1));
8029         assert(funcFwd(Date(2009, 12, 27)) == Date(2011, 3, 2));
8030         assert(funcFwd(Date(2009, 12, 28)) == Date(2011, 3, 3));
8031         assert(funcFwd(Date(2009, 12, 29)) == Date(2011, 3, 4));
8033         assert(funcBwd(Date(2011, 2, 28)) == Date(2009, 12, 25));
8034         assert(funcBwd(Date(2011, 3, 1)) == Date(2009, 12, 26));
8035         assert(funcBwd(Date(2011, 3, 2)) == Date(2009, 12, 27));
8036         assert(funcBwd(Date(2011, 3, 3)) == Date(2009, 12, 28));
8037         assert(funcBwd(Date(2011, 3, 4)) == Date(2010, 1, 1));
8041         auto funcFwd = everyDuration!Date(1, 2, AllowDayOverflow.no, dur!"days"(3));
8042 …     auto funcBwd = everyDuration!(Date, Direction.bwd)(1, 2, AllowDayOverflow.yes, dur!"days"(3));
8044         assert(funcFwd(Date(2009, 12, 25)) == Date(2011, 2, 28));
8045         assert(funcFwd(Date(2009, 12, 26)) == Date(2011, 3, 1));
8046         assert(funcFwd(Date(2009, 12, 27)) == Date(2011, 3, 2));
8047         assert(funcFwd(Date(2009, 12, 28)) == Date(2011, 3, 3));
8048         assert(funcFwd(Date(2009, 12, 29)) == Date(2011, 3, 3));
8050         assert(funcBwd(Date(2011, 2, 28)) == Date(2009, 12, 25));
8051         assert(funcBwd(Date(2011, 3, 1)) == Date(2009, 12, 26));
8052         assert(funcBwd(Date(2011, 3, 2)) == Date(2009, 12, 27));
8053         assert(funcBwd(Date(2011, 3, 3)) == Date(2009, 12, 28));
8054         assert(funcBwd(Date(2011, 3, 4)) == Date(2010, 1, 1));
8057     assert(everyDuration!Date(1, 2, AllowDayOverflow.yes, dur!"hnsecs"(1)) !is null);
8072     the interval `Interval!Date`, pass a function to $(LREF Interval)'s
8076     over the $(REF Date,std,datetime,date)s in the interval.
8307     static assert(isInputRange!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8308     static assert(isForwardRange!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8313     static assert(!isBidirectionalRange!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8314     static assert(!isRandomAccessRange!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8315     static assert(!hasSwappableElements!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8316     static assert(!hasAssignableElements!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8317     static assert(!hasLength!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8318     static assert(!isInfinite!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8319     static assert(!hasSlicing!(IntervalRange!(Date, Direction.fwd)));  in opAssign()
8321     static assert(is(ElementType!(IntervalRange!(Date, Direction.fwd)) == Date));  in opAssign()
8334         Date dateFunc(scope const Date date) { return date; }  in dateFunc()
8335         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8336         auto ir = IntervalRange!(Date, Direction.fwd)(interval, &dateFunc);
8366 …auto range = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 21)).fwdRange(everyDayOfWeek!Date(DayO…
8372 …const cRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(everyDayOfWeek!Date(DayO…
8381         auto range = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 21)).bwdRange(
8382             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri));
8388         const cRange = Interval!Date( Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8389             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri));
8404         auto emptyRange = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 20)).fwdRange(
8405             everyDayOfWeek!Date(DayOfWeek.wed), PopFirst.yes);
8407             (scope const IntervalRange!(Date, Direction.fwd) range){range.front;}(emptyRange));
8409 …auto range = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(everyDayOfWeek!Date(DayOfW…
8410         assert(range.front == Date(2010, 7, 4));
8412         auto poppedRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(
8413             everyDayOfWeek!Date(DayOfWeek.wed), PopFirst.yes);
8414         assert(poppedRange.front == Date(2010, 7, 7));
8416 …const cRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(everyDayOfWeek!Date(DayO…
8417         assert(cRange.front != Date.init);
8422         auto emptyRange = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 20)).bwdRange(
8423             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
8425             (scope const IntervalRange!(Date, Direction.bwd) range){range.front;}(emptyRange));
8427         auto range = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8428             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed));
8429         assert(range.front == Date(2012, 1, 7));
8431         auto poppedRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8432             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
8433         assert(poppedRange.front == Date(2012, 1, 4));
8435         const cRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8436             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri));
8437         assert(cRange.front != Date.init);
8449         auto emptyRange = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 20)).fwdRange(
8450             everyDayOfWeek!Date(DayOfWeek.wed), PopFirst.yes);
8451 …assertThrown!DateTimeException((IntervalRange!(Date, Direction.fwd) range){range.popFront();}(empt…
8453         auto range = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(
8454             everyDayOfWeek!Date(DayOfWeek.wed), PopFirst.yes);
8465 …const cRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).fwdRange(everyDayOfWeek!Date(DayO…
8466         assert(cRange.front != Date.init);
8471         auto emptyRange = Interval!Date(Date(2010, 9, 19), Date(2010, 9, 20)).bwdRange(
8472             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
8473 …assertThrown!DateTimeException((IntervalRange!(Date, Direction.bwd) range){range.popFront();}(empt…
8475         auto range = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8476             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
8487         const cRange = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7)).bwdRange(
8488             everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri));
8500         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8501         auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8509         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8510         auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
8524         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8525         auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8536         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8537         auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
8554         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8555         auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8563         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8564         auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
8578         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8579         auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8590         auto interval = Interval!Date(Date(2010, 7, 4), Date(2012, 1, 7));
8591         auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
8610     over all of the days in the interval `PosInfInterval!Date`, pass a
8615     $(REF Date,std,datetime,date)s in the interval - though obviously, since the
8753     static assert(isInputRange!(PosInfIntervalRange!Date));  in opAssign()
8754     static assert(isForwardRange!(PosInfIntervalRange!Date));  in opAssign()
8755     static assert(isInfinite!(PosInfIntervalRange!Date));  in opAssign()
8759     static assert(!isBidirectionalRange!(PosInfIntervalRange!Date));  in opAssign()
8760     static assert(!isRandomAccessRange!(PosInfIntervalRange!Date));  in opAssign()
8761     static assert(!hasSwappableElements!(PosInfIntervalRange!Date));  in opAssign()
8762     static assert(!hasAssignableElements!(PosInfIntervalRange!Date));  in opAssign()
8763     static assert(!hasLength!(PosInfIntervalRange!Date));  in opAssign()
8764     static assert(!hasSlicing!(PosInfIntervalRange!Date));  in opAssign()
8766     static assert(is(ElementType!(PosInfIntervalRange!Date) == Date));  in opAssign()
8779         Date dateFunc(scope const Date date) { return date; }  in dateFunc()
8780         auto posInfInterval = PosInfInterval!Date(Date(2010, 7, 4));
8781         auto ir = PosInfIntervalRange!Date(posInfInterval, &dateFunc);
8808     auto range = PosInfInterval!Date(Date(2010, 7, 4)).fwdRange(everyDayOfWeek!Date(DayOfWeek.wed));
8809     assert(range.front == Date(2010, 7, 4));
8811 …auto poppedRange = PosInfInterval!Date(Date(2010, 7, 4)).fwdRange(everyDayOfWeek!Date(DayOfWeek.we…
8812     assert(poppedRange.front == Date(2010, 7, 7));
8814 … const cRange = PosInfInterval!Date(Date(2010, 7, 4)).fwdRange(everyDayOfWeek!Date(DayOfWeek.fri));
8815     assert(cRange.front != Date.init);
8824 …auto range = PosInfInterval!Date(Date(2010, 7, 4)).fwdRange(everyDayOfWeek!Date(DayOfWeek.wed), Po…
8833 … const cRange = PosInfInterval!Date(Date(2010, 7, 4)).fwdRange(everyDayOfWeek!Date(DayOfWeek.fri));
8842     auto interval = PosInfInterval!Date(Date(2010, 7, 4));
8843     auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8854     auto interval = PosInfInterval!Date(Date(2010, 7, 4));
8855     auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8869     auto interval = PosInfInterval!Date(Date(2010, 7, 4));
8870     auto func = everyDayOfWeek!Date(DayOfWeek.fri);
8885     `NegInfInterval!Date`, pass a function to `NegInfInterval`'s
8889     iterate over the $(REF Date,std,datetime,date)s in the interval - though
9036     static assert(isInputRange!(NegInfIntervalRange!Date));
9037     static assert(isForwardRange!(NegInfIntervalRange!Date));
9038     static assert(isInfinite!(NegInfIntervalRange!Date));
9042     static assert(!isBidirectionalRange!(NegInfIntervalRange!Date));
9043     static assert(!isRandomAccessRange!(NegInfIntervalRange!Date));
9044     static assert(!hasSwappableElements!(NegInfIntervalRange!Date));
9045     static assert(!hasAssignableElements!(NegInfIntervalRange!Date));
9046     static assert(!hasLength!(NegInfIntervalRange!Date));
9047     static assert(!hasSlicing!(NegInfIntervalRange!Date));
9049     static assert(is(ElementType!(NegInfIntervalRange!Date) == Date));
9061         Date dateFunc(scope const Date date) { return date; }  in dateFunc()
9062         auto negInfInterval = NegInfInterval!Date(Date(2012, 1, 7));
9063         auto ir = NegInfIntervalRange!Date(negInfInterval, &dateFunc);
9090 …auto range = NegInfInterval!Date(Date(2012, 1, 7)).bwdRange(everyDayOfWeek!(Date, Direction.bwd)(D…
9091     assert(range.front == Date(2012, 1, 7));
9093     auto poppedRange = NegInfInterval!Date(Date(2012, 1, 7)).bwdRange(
9094         everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
9095     assert(poppedRange.front == Date(2012, 1, 4));
9097 …const cRange = NegInfInterval!Date(Date(2012, 1, 7)).bwdRange(everyDayOfWeek!(Date, Direction.bwd)…
9098     assert(cRange.front != Date.init);
9107     auto range = NegInfInterval!Date(Date(2012, 1, 7)).bwdRange(
9108         everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.wed), PopFirst.yes);
9117 …const cRange = NegInfInterval!Date(Date(2012, 1, 7)).bwdRange(everyDayOfWeek!(Date, Direction.bwd)…
9126     auto interval = NegInfInterval!Date(Date(2012, 1, 7));
9127     auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
9138     auto interval = NegInfInterval!Date(Date(2012, 1, 7));
9139     auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);
9153     auto interval = NegInfInterval!Date(Date(2012, 1, 7));
9154     auto func = everyDayOfWeek!(Date, Direction.bwd)(DayOfWeek.fri);