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Diffstat (limited to 'lib/integer.pm')
-rw-r--r-- | lib/integer.pm | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/integer.pm b/lib/integer.pm index 74039bb962..a88ce6a77c 100644 --- a/lib/integer.pm +++ b/lib/integer.pm @@ -1,5 +1,26 @@ package integer; +=head1 NAME + +integer - Perl pragma to compute arithmetic in integer instead of double + +=head1 SYNOPSIS + + use integer; + $x = 10/3; + # $x is now 3, not 3.33333333333333333 + +=head1 DESCRIPTION + +This tells the compiler that it's okay to use integer operations +from here to the end of the enclosing BLOCK. On many machines, +this doesn't matter a great deal for most computations, but on those +without floating point hardware, it can make a big difference. + +See L<perlmod/Pragmatic Modules>. + +=cut + sub import { $^H |= 1; } |