empty_base.rst

C++的一个好库。。。现在很流行

.. Data Types/Miscellaneous//empty_base |20

empty_base
==========

Synopsis
--------

.. parsed-literal::
    
    struct empty_base {};


Description
-----------

An empty base class. Inheritance from |empty_base| through the |inherit| 
metafunction is a no-op.


Header
------

.. parsed-literal::
    
    #include <boost/mpl/empty_base.hpp>


See also
--------

|Data Types|, |inherit|, |inherit_linearly|, |void_|