- NAME
- SYNOPSIS
- DESCRIPTION

# 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 Pragmatic Modules.