Maybe something like this: 
sub is_int {
  my $warned = 0;
  local $SIG{__WARN__} = sub { $warned++ };
  local $^W = 1;
  $_[0] == int $_[0] and not $warned;
}

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-- Randal L. Schwartz, Perl hacker

In reply to Re: Integer detection concept by merlyn
in thread Integer detection concept by boo_radley

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