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Module::Loaded(3perl)  Perl Programmers Reference Guide  Module::Loaded(3perl)

       Module::Loaded - mark modules as loaded or unloaded

           use Module::Loaded;

           $bool = mark_as_loaded('Foo');   # is now marked as loaded
           $loc  = is_loaded('Foo');        # location of set to the
                                            # loaders location
           eval "require 'Foo'";            # is now a no-op

           $bool = mark_as_unloaded('Foo'); # no longer marked as loaded
           eval "require 'Foo'";            # Will try to find in @INC

       When testing applications, often you find yourself needing to provide
       functionality in your test environment that would usually be provided
       by external modules. Rather than munging the %INC by hand to mark these
       external modules as loaded, so they are not attempted to be loaded by
       perl, this module offers you a very simple way to mark modules as
       loaded and/or unloaded.

   $bool = mark_as_loaded( PACKAGE );
       Marks the package as loaded to perl. "PACKAGE" can be a bareword or

       If the module is already loaded, "mark_as_loaded" will carp about this
       and tell you from where the "PACKAGE" has been loaded already.

   $bool = mark_as_unloaded( PACKAGE );
       Marks the package as unloaded to perl, which is the exact opposite of
       "mark_as_loaded". "PACKAGE" can be a bareword or string.

       If the module is already unloaded, "mark_as_unloaded" will carp about
       this and tell you the "PACKAGE" has been unloaded already.

   $loc = is_loaded( PACKAGE );
       "is_loaded" tells you if "PACKAGE" has been marked as loaded yet.
       "PACKAGE" can be a bareword or string.

       It returns falls if "PACKAGE" has not been loaded yet and the location
       from where it is said to be loaded on success.

       Please report bugs or other issues to

       This module by Jos Boumans <>.

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

perl v5.20.2                      2014-12-27             Module::Loaded(3perl)

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