Chris@16: // Copyright David Abrahams 2006. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef BOOST_CONCEPT_ASSERT_DWA2006430_HPP
Chris@16: # define BOOST_CONCEPT_ASSERT_DWA2006430_HPP
Chris@16: 
Chris@16: # include <boost/config.hpp>
Chris@16: # include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: // The old protocol used a constraints() member function in concept
Chris@16: // checking classes.  If the compiler supports SFINAE, we can detect
Chris@16: // that function and seamlessly support the old concept checking
Chris@16: // classes.  In this release, backward compatibility with the old
Chris@16: // concept checking classes is enabled by default, where available.
Chris@16: // The old protocol is deprecated, though, and backward compatibility
Chris@16: // will no longer be the default in the next release.
Chris@16: 
Chris@16: # if !defined(BOOST_NO_OLD_CONCEPT_SUPPORT)                                         \
Chris@16:     && !defined(BOOST_NO_SFINAE)                                                    \
Chris@16:                                                                                     \
Chris@101:     && !(BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4))
Chris@16: 
Chris@16: // Note: gcc-2.96 through 3.3.x have some SFINAE, but no ability to
Chris@16: // check for the presence of particularmember functions.
Chris@16: 
Chris@16: #  define BOOST_OLD_CONCEPT_SUPPORT
Chris@16: 
Chris@16: # endif
Chris@16: 
Chris@16: # ifdef BOOST_MSVC
Chris@16: #  include <boost/concept/detail/msvc.hpp>
Chris@16: # elif BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
Chris@16: #  include <boost/concept/detail/borland.hpp>
Chris@16: # else 
Chris@16: #  include <boost/concept/detail/general.hpp>
Chris@16: # endif
Chris@16: 
Chris@16:   // Usage, in class or function context:
Chris@16:   //
Chris@16:   //     BOOST_CONCEPT_ASSERT((UnaryFunctionConcept<F,bool,int>));
Chris@16:   //
Chris@16: # define BOOST_CONCEPT_ASSERT(ModelInParens) \
Chris@16:     BOOST_CONCEPT_ASSERT_FN(void(*)ModelInParens)
Chris@16: 
Chris@16: #endif // BOOST_CONCEPT_ASSERT_DWA2006430_HPP