


integer(3p)      Perl Programmers Reference Guide     integer(3p)


NAME
       integer - Perl pragma to compute arithmetic in integer
       instead of double

SYNOPSIS
           use integer;
           $x = 10/3;
           # $x is now 3, not 3.33333333333333333


DESCRIPTION
       This tells the compiler 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.

       Note that this affects the operations, not the numbers.
       If you run this code

           use integer;
           $x = 1.5;
           $y = $x + 1;
           $z = -1.5;

       you'll be left with $x == 1.5, $y == 2 and $z == -1.  The
       $z case happens because unary - counts as an operation.

       See the section on Pragmatic Modules in the perlmod
       manpage.



























29/Apr/1999            perl 5.005, patch 03                     1


