NAME
Number::Zero - make sure of the number zero
SYNOPSIS
# Export type functions by default
use Number::Zero;;
is_zero 0; # 1
is_zero 1326 # undef
is_zero 'umeyuki' # undef
# Non export interface
use Number::Zero ();
Number::Zero::is_zero 0; # 1
Number::Zero::is_zero 1326 # undef
Number::Zero::is_zero 'umeyuki' # undef
DESCRIPTION Number::Zero is very simple perl module for numeric. The
number zero and undef are difficult to determine in Perl. If you want to
find zero instead of undef, Number::Zero can make sure of the number
zero.
FUNCTIONS
There is only a function and the function is exported by default.
If you don't want this exported functions, pass empty list to use line:
use Nubmer::Zero ();
is_zero
This code returns 1 if variable is only zero.
AUTHOR
Hiromitsu Ito
COPYRIGHT AND LICENSE
Copyright (c) 2012 Hiromitsu Ito. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included
with this module.