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has_data.hpp File Reference
#include <boost/config.hpp>
#include <boost/preprocessor/cat.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/tti/gen/has_data_gen.hpp>
#include <boost/tti/detail/ddata.hpp>
Include dependency graph for has_data.hpp:
This graph shows which files directly or indirectly include this file:

Macros

#define BOOST_TTI_TRAIT_HAS_DATA(trait, name)
 Expands to a metafunction which tests whether member data or static member with a particular name and type exists. More...
 
#define BOOST_TTI_HAS_DATA(name)
 Expands to a metafunction which tests whether member data or static member data with a particular name and type exists. More...
 

Macro Definition Documentation

#define BOOST_TTI_HAS_DATA (   name)
Value:
( \
) \
#define BOOST_TTI_HAS_DATA_GEN(name)
Generates the macro metafunction name for BOOST_TTI_HAS_DATA.
Definition: has_data_gen.hpp:27
const int name
Definition: gzip.hpp:94
#define BOOST_TTI_TRAIT_HAS_DATA(trait, name)
Expands to a metafunction which tests whether member data or static member with a particular name and...
Definition: has_data.hpp:51

Expands to a metafunction which tests whether member data or static member data with a particular name and type exists.

name = the name of the inner member.

generates a metafunction called "has_data_name" where 'name' is the macro parameter.

      template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_TYPE>
      struct has_data_name
        {
        static const value = unspecified;
        typedef mpl::bool_<true-or-false> type;
        };

      The metafunction types and return:

        BOOST_TTI_TP_T    = the enclosing type in which to look for our 'name'

        BOOST_TTI_TP_TYPE = The type of the member data or static member.

        returns  = 'value' is true if the 'name' exists, with the correct data type,
                   otherwise 'value' is false.
#define BOOST_TTI_TRAIT_HAS_DATA (   trait,
  name 
)
Value:
BOOST_TTI_DETAIL_TRAIT_HAS_DATA(trait,name) \
template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_TYPE> \
struct trait \
{ \
typedef typename \
BOOST_PP_CAT(trait,_detail_hd) \
< \
BOOST_TTI_TP_TYPE \
}; \
const int name
Definition: gzip.hpp:94
#define BOOST_PP_CAT(a, b)
Definition: cat.hpp:24
typed_value< T > * value()
Creates a typed_value instance.
adjacency_iterator typedef T::adjacency_iterator type
Definition: graph_traits.hpp:42
#define BOOST_STATIC_CONSTANT(type, assignment)
Definition: suffix.hpp:394

Expands to a metafunction which tests whether member data or static member with a particular name and type exists.

trait = the name of the metafunction.

name = the name of the inner member to introspect.

generates a metafunction called "trait" where 'trait' is the macro parameter.

      template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_TYPE>
      struct trait
        {
        static const value = unspecified;
        typedef mpl::bool_<true-or-false> type;
        };

      The metafunction types and return:

        BOOST_TTI_TP_T    = the enclosing type in which to look for our 'name'

        BOOST_TTI_TP_TYPE = The type of the member data or static member.

        returns  = 'value' is true if the 'name' exists, with the correct data type,
                   otherwise 'value' is false.