Edit: /usr/include/boost/tti/has_static_member_function.hpp (5706B)
// (C) Copyright Edward Diener 2011,2012,2013
// Use, modification and distribution are subject to 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).
#if !defined(BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_HPP)
#define BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_HPP
#include
#include
#include
#include
#include
#include
/*
The succeeding comments in this file are in doxygen format.
*/
/** \file
*/
/// A macro which expands to a metafunction which tests whether a static member function with a particular name and signature exists.
/**
BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION is a macro which expands to a metafunction.
The metafunction tests whether a static member function with a particular name
and signature exists. The macro takes the form of BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION(trait,name) where
trait = the name of the metafunction
name = the name of the inner member.
BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION generates a metafunction called "trait" where 'trait' is the macro parameter.
@code
template
struct trait
{
static const value = unspecified;
typedef mpl::bool_ type;
};
The metafunction types and return:
BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'.
The enclosing type can be a class, struct, or union.
BOOST_TTI_TP_R = the return type of the static member function
OR
the signature of a function in the form of Return_Type ( Parameter_Types )
BOOST_TTI_TP_FS = (optional) the parameters of the static member function as a boost::mpl forward sequence
if the second parameter is a return type and the function parameters exist.
BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function
if the second parameter is a return type and the need for a tag exists.
returns = 'value' is true if the 'name' exists,
with the appropriate static member function type,
otherwise 'value' is false.
@endcode
*/
#define BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION(trait,name) \
BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_FUNCTION(trait,name) \
template,class BOOST_TTI_TP_TAG = boost::function_types::null_tag> \
struct trait \
{ \
typedef typename \
BOOST_PP_CAT(trait,_detail_hsmf)::type type; \
BOOST_STATIC_CONSTANT(bool,value=type::value); \
}; \
/**/
/// A macro which expands to a metafunction which tests whether a static member function with a particular name and signature exists.
/**
BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION is a macro which expands to a metafunction.
The metafunction tests whether a static member function with a particular name
and signature exists. The macro takes the form of BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION(name) where
name = the name of the inner member.
BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION generates a metafunction called "has_static_member_function_name" where 'name' is the macro parameter.
@code
template
struct has_static_member_function_'name'
{
static const value = unspecified;
typedef mpl::bool_ type;
};
The metafunction types and return:
BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'.
The enclosing type can be a class, struct, or union.
BOOST_TTI_TP_R = the return type of the static member function
OR
the signature of a function in the form of Return_Type ( Parameter_Types )
BOOST_TTI_TP_FS = (optional) the parameters of the static member function as a boost::mpl forward sequence
if the second parameter is a return type and the function parameters exist.
BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function
if the second parameter is a return type and the need for a tag exists.
returns = 'value' is true if the 'name' exists,
with the appropriate static member function type,
otherwise 'value' is false.
@endcode
*/
#define BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION(name) \
BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION \
( \
BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_GEN(name), \
name \
) \
/**/
#endif // BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_HPP