Class Template implements

Description

Notes

Headers

Synopsis

Description

The class template implements is a binary, boolean-valued Metafunction which returns true for a class/interface pair if the class implements the interface, i.e., if the class defines non-static member functions with names and signatures exactly matching those of the member functions of the interface.

Notes

• The current implementation does not enforce an exact match between the member function signatures of a class and those of an interface when an interface instance is initialized with a class instance or when a class instance is assigned to an interface instance. In the future, this enforcement may be provided optionally by the introduction of an additional qualifier strict. See Future Directions: Additional Qualifiers.
• Support for implements can be disabled by defining the preprocessor symbol BOOST_IDL_NO_IMPLEMENTS; this can help shorten compile times slightly. If support for implements is disabled, the class template implements will be defined but will always evaluate to mpl::false_.
• The metafunction implements is currently broken on VC 7.1. See Testing: Supported Platforms.

Headers

Synopsis

namespace boost { namespace interfaces { 

    template<typename T, typename Interface>
    struct implements
        : mpl::bool_< ... >
        { };

} } // End namespace boost::interfaces

Revised 13 Jan, 2005

© Copyright Jonathan Turkanis, 2005. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

Sha'arei Tefila, an Orthodox Shul (Synagogue) in Salt Lake City, Utah Chabad Lubavitch of Utah