use Types::Common qw( Int );

tie my $x, Int;

$x  = 5;
$x += 1;
print $x, "\n";   # prints "6"

$x = "7";         # this is fine, even though it's quoted

$x += 0.5;        # dies because 7.5 isn't an integer

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In reply to Re: way of declare an integer variable instead use /^\d+$/ by tobyink
in thread way of declare an integer variable instead use /^\d+$/ by vincentaxhe

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