1#!./perl 2 3BEGIN { 4 chdir 't' if -d 't'; 5 @INC = '../lib'; 6} 7 8use integer; 9 10use Test::More tests => 11; 11use Config; 12 13my $x = 4.5; 14my $y = 5.6; 15my $z; 16 17$z = $x + $y; 18is($z, 9, "plus"); 19 20$z = $x - $y; 21is($z, -1, "minus"); 22 23$z = $x * $y; 24is($z, 20, "times"); 25 26$z = $x / $y; 27is($z, 0, "divide"); 28 29$z = $x / $y; 30is($z, 0, "modulo"); 31 32is($x, 4.5, "scalar still floating point"); 33 34isnt(sqrt($x), 2, "functions still floating point"); 35 36isnt($x ** .5, 2, "power still floating point"); 37 38is(++$x, 5.5, "++ still floating point"); 39 40SKIP: { 41 my $ivsize = $Config{ivsize}; 42 skip "ivsize == $ivsize", 2 unless $ivsize == 4 || $ivsize == 8; 43 44 if ($ivsize == 4) { 45 $z = 2**31 - 1; 46 is($z + 1, -2147483648, "left shift"); 47 } elsif ($ivsize == 8) { 48 $z = 2**63 - 1; 49 is($z + 1, -9223372036854775808, "left shift"); 50 } 51} 52 53is(~0, -1, "signed instead of unsigned"); 54