NAME
    Devel::Assert - assertions for Perl >= 5.14

SYNOPSIS
        use Devel::Assert; # release mode, won't perform checks

        assert(3 > 2); 

        use Devel::Assert 'on';

        assert(3 > 2); # oops, check your math

FEATURES
    * assert() call and all it's arguments are replaced with no-ops at
      compile time

    * not a source filter

DESCRIPTION
    This module provides you with a C-like assert() function - it completely
    disappears when you don't want it. That's useful to force functions'
    contracts during development without sacrificing production performance.

    That's just like tests, but inside your code.

        sub get_url {
            my ($self, $url, $cb) = @_;

            assert length $url;
            assert(ref($cb) eq 'CODE');

            ...
        }

USAGE
        use Devel::Assert; # import 'assert' function, but doesn't enable it
        use Devel::Assert 'on'; # import 'assert' function and enable it

        use Devel::Assert 'global'; # import 'assert' function and enable it in all later 'use Devel::Assert' imports
        use Devel::Assert::Global; # the same, can be used as perl -MDevel::Assert::Global your_program.pl

DISABLING ASSERTIONS
    To temporary disable assertions you can use the following two options:

            no Devel::Assert;
        # or
        use Devel::Assert 'off';

    But note that currently this feature is not lexically scoped. It
    disables checks right until the next 'use Devel::Assert' statement
    (whenever it happens). This may be quite counterintuitive.

CAVEATS
    assert() calls in text evals do not respect compile-time mode for the
    current module, but rather take default mode - 'off', unless 'global' is
    in effect. If you want them 'on', import Devel::Assert with 'on' flag
    inside your eval'ed string.

SEE ALSO
    assertions - for perls >= 5.9.0, different syntax (code attributes).

    Carp::Assert - requires annoying 'if DEBUG' suffix.

AUTHOR
    Sergey Aleynikov <randir@cpan.org>

COPYRIGHT
    Copyright (C) 2009, 2015 Sergey Aleynikov

LICENSE
    This program is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.