NAME

       Scalar::Util::Numeric - numeric tests for perl scalars

SYNOPSIS

           use Scalar::Util::Numeric qw(isnum isint isfloat);

           foo($bar / 2) if (isnum $bar);

           if (isint $baz) {
               # ...
           } elsif (isfloat $baz) {
               # ...
           }

DESCRIPTION

       This module exports a number of wrappers around perl's builtin "grok_number" function,
       which returns the numeric type of its argument, or 0 if it isn't numeric.

TAGS

       All of the functions exported by Scalar::Util::Numeric can be imported by using the ":all"
       tag:

           use Scalar::Util::Numeric qw(:all);

EXPORTS

   isnum
           isnum ($val)

       Returns a nonzero value (indicating the numeric type) if $val is a number.

       The numeric type is a conjunction of the following flags:

           0x01  IS_NUMBER_IN_UV               (number within UV range - not necessarily an integer)
           0x02  IS_NUMBER_GREATER_THAN_UV_MAX (number is greater than UV_MAX)
           0x04  IS_NUMBER_NOT_INT             (saw . or E notation)
           0x08  IS_NUMBER_NEG                 (leading minus sign)
           0x10  IS_NUMBER_INFINITY            (Infinity)
           0x20  IS_NUMBER_NAN                 (NaN - not a number)

   isint
   isuv
   isbig
   isfloat
   isneg
   isinf
   isnan
       The following flavours of "isnum" (corresponding to the flags above) are also available:

           isint
           isuv
           isbig
           isfloat
           isneg
           isinf
           isnan

       "isint" returns -1 if its operand is a negative integer, 1 if it's 0 or a positive
       integer, and 0 otherwise.

       The others always return 1 or 0.

SEE ALSO

       •   "type" in autobox

       •   Data::Types

       •   Params::Classify

       •   Params::Util

       •   Scalar::Util

       •   String::Numeric

VERSION

       0.40

AUTHORS

       •   chocolateboy <chocolate@cpan.org>

       •   Michael G. Schwern <schwern@pobox.com>

COPYRIGHT

       Copyright (c) 2005-2014, chocolateboy.

       This module is free software. It may be used, redistributed and/or modified under the same
       terms as Perl itself.