=over

=item int EXPR

=item int

Returns the integer portion of EXPR.  If EXPR is omitted, uses C<$_>.
You should not use this for rounding, because it truncates
towards C<0>, and because machine representations of floating point
numbers can sometimes produce counterintuitive results.  Usually C<sprintf()> or C<printf()>,
or the C<POSIX::floor> or C<POSIX::ceil> functions, would serve you better.

=back