CXXD_HAS_STD_FUNCTION — Determines whether the C++ standard function implementation or the Boost function implementation has been chosen.
// In header: <boost/cxx_dual/impl/function.hpp> CXXD_HAS_STD_FUNCTION
The object-like macro expands to: 1 if the C++ standard function implementation has been chosen 0 if the Boost function implementation has been chosen.
