11 // std::ranges::size
19 using RangeSizeT = decltype(std::ranges::size);
32 static_assert(std::ranges::size(array_of_incomplete) == 42);
33 static_assert(std::ranges::size(std::move(array_of_incomplete)) == 42);
34 static_assert(std::ranges::size(std::as_const(array_of_incomplete)) == 42);
35 static_assert(std::ranges::size(static_cast<const Incomplete(&&)[42]>(array_of_incomplete)) == 42);
38   constexpr std::size_t size() { return 42; }  in size()  function
42   constexpr static std::size_t size() { return 42; }  in size()  function
48   friend constexpr std::size_t size(SizeFunction) { return 42; }  in size()  function
51 // Make sure the size member is preferred.
53   constexpr std::size_t size() { return 42; }  in size()  function
54   friend constexpr std::size_t size(SizeMemberAndFunction) { return 0; }  in size()  function
63   assert(std::ranges::size(a) == 4);  in testArrayType()
64   ASSERT_SAME_TYPE(decltype(std::ranges::size(a)), std::size_t);  in testArrayType()
65   assert(std::ranges::size(b) == 1);  in testArrayType()
66   ASSERT_SAME_TYPE(decltype(std::ranges::size(b)), std::size_t);  in testArrayType()
67   assert(std::ranges::size(c) == 4);  in testArrayType()
68   ASSERT_SAME_TYPE(decltype(std::ranges::size(c)), std::size_t);  in testArrayType()
69   assert(std::ranges::size(d) == 4);  in testArrayType()
70   ASSERT_SAME_TYPE(decltype(std::ranges::size(d)), std::size_t);  in testArrayType()
76   constexpr std::size_t size() const { return 42; }  in size()  function
80   constexpr long size() { return 42; }  in size()  function
84   assert(std::ranges::size(SizeMember()) == 42);  in testHasSizeMember()
85   ASSERT_SAME_TYPE(decltype(std::ranges::size(SizeMember())), std::size_t);  in testHasSizeMember()
88   assert(std::ranges::size(sizeMemberConst) == 42);  in testHasSizeMember()
90   assert(std::ranges::size(SizeMemberAndFunction()) == 42);  in testHasSizeMember()
92   assert(std::ranges::size(SizeMemberSigned()) == 42);  in testHasSizeMember()
93   ASSERT_SAME_TYPE(decltype(std::ranges::size(SizeMemberSigned())), long);  in testHasSizeMember()
95   assert(std::ranges::size(StaticSizeMember()) == 42);  in testHasSizeMember()
96   ASSERT_SAME_TYPE(decltype(std::ranges::size(StaticSizeMember())), std::size_t);  in testHasSizeMember()
106   friend constexpr std::size_t size(MoveOnlySizeFunction) { return 42; }  in size()  function
113 constexpr std::size_t size(EnumSizeFunction) { return 42; }  in size()  function
116   friend constexpr std::size_t size(const SizeFunctionConst) { return 42; }  in size()  function
120   friend constexpr std::size_t size(SizeFunctionRef&) { return 42; }  in size()  function
124   friend constexpr std::size_t size(SizeFunctionConstRef const&) { return 42; }  in size()  function
128   friend constexpr long size(SizeFunctionSigned) { return 42; }  in size()  function
132   assert(std::ranges::size(SizeFunction()) == 42);  in testHasSizeFunction()
133   ASSERT_SAME_TYPE(decltype(std::ranges::size(SizeFunction())), std::size_t);  in testHasSizeFunction()
135   assert(std::ranges::size(EnumSizeFunction()) == 42);  in testHasSizeFunction()
136   assert(std::ranges::size(SizeFunctionConst()) == 42);  in testHasSizeFunction()
139   assert(std::ranges::size(a) == 42);  in testHasSizeFunction()
142   assert(std::ranges::size(b) == 42);  in testHasSizeFunction()
144   assert(std::ranges::size(SizeFunctionSigned()) == 42);  in testHasSizeFunction()
145   ASSERT_SAME_TYPE(decltype(std::ranges::size(SizeFunctionSigned())), long);  in testHasSizeFunction()
154   Empty size();
158   friend Empty size(InvalidReturnTypeFunction);
166   Convertible size();
170   friend Convertible size(ConvertibleReturnTypeFunction);
174   bool size() const;
178   friend bool size(BoolReturnTypeFunction const&);
191   std::size_t size() { return 42; }  in size()  function
198   std::size_t size() const { return 42; }  in size()  function
207   friend std::size_t size(SizeFunctionDisabled) { return 42; }  in size()  function
214   friend std::size_t size(ImproperlyDisabledFunction const&) { return 42; }  in size()  function
281   constexpr std::size_t size() { return 1; }  in size()  function
291   constexpr std::size_t size() { return 1; }  in size()  function
296   assert(std::ranges::size(a) == 2);  in testRanges()
298   ASSERT_SAME_TYPE(decltype(std::ranges::size(a)), std::size_t);  in testRanges()
301   assert(std::ranges::size(b) == 8);  in testRanges()
304   assert(std::ranges::size(c) == 8);  in testRanges()
307   assert(std::ranges::size(d) == 2);  in testRanges()
308   ASSERT_SAME_TYPE(decltype(std::ranges::size(d)), std::size_t);  in testRanges()
311   assert(std::ranges::size(e) == 1);  in testRanges()