| 1 | #!./perl |
| 2 | |
| 3 | BEGIN { |
| 4 | chdir 't' if -d 't'; |
| 5 | @INC = '../lib'; |
| 6 | } |
| 7 | |
| 8 | use integer; |
| 9 | |
| 10 | use Test::More tests => 15; |
| 11 | use Config; |
| 12 | |
| 13 | my $x = 4.5; |
| 14 | my $y = 5.6; |
| 15 | my $z; |
| 16 | |
| 17 | $z = $x + $y; |
| 18 | is($z, 9, "plus"); |
| 19 | |
| 20 | $z = $x - $y; |
| 21 | is($z, -1, "minus"); |
| 22 | |
| 23 | $z = $x * $y; |
| 24 | is($z, 20, "times"); |
| 25 | |
| 26 | $z = $x / $y; |
| 27 | is($z, 0, "divide"); |
| 28 | |
| 29 | $z = $x / $y; |
| 30 | is($z, 0, "modulo"); |
| 31 | |
| 32 | is($x, 4.5, "scalar still floating point"); |
| 33 | |
| 34 | isnt(sqrt($x), 2, "functions still floating point"); |
| 35 | |
| 36 | isnt($x ** .5, 2, "power still floating point"); |
| 37 | |
| 38 | is(++$x, 5.5, "++ still floating point"); |
| 39 | |
| 40 | SKIP: { |
| 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 | |
| 53 | is(~0, -1, "signed instead of unsigned"); |
| 54 | |
| 55 | # [perl #38485] use integer; 0x80000000/-1; |
| 56 | SKIP: { |
| 57 | my $ivsize = $Config{ivsize}; |
| 58 | skip "ivsize == $ivsize", 4 unless $ivsize == 4 || $ivsize == 8; |
| 59 | |
| 60 | my $iv_min = $ivsize == 4 ? -2147483648 : -9223372036854775808; |
| 61 | my $biff; |
| 62 | eval { $biff = $iv_min / -1 }; |
| 63 | is($@, '', 'IV_MIN / -1 succeeds'); |
| 64 | is($biff, -$iv_min, 'IV_MIN / -1 == -IV_MIN'); |
| 65 | |
| 66 | eval { $biff = $iv_min % -1 }; |
| 67 | is($@, '', 'IV_MIN % -1 succeeds'); |
| 68 | is($biff, 0, 'IV_MIN % -1 == 0'); |
| 69 | } |