BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_DATA — Expands to a metafunction which tests whether a static member data with a particular name and type exists.
// In header: <boost/tti/has_static_member_data.hpp> BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_DATA(trait, name)
trait = the name of the metafunction within the tti namespace.
name = the name of the inner member.
generates a metafunction called "trait" where 'trait' is the macro parameter. The metafunction types and return: BOOST_TTI_TP_T = the enclosing type. BOOST_TTI_TP_TYPE = the static member data type, in the form of a data type, in which to look for our 'name'. returns = 'value' is true if the 'name' exists, with the BOOST_TTI_TP_TYPE type, within the enclosing BOOST_TTI_TP_T type, otherwise 'value' is false.