| //======================================================================= |
| // Copyright 1997, 1998, 1999, 2000 University of Notre Dame. |
| // Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek |
| // |
| // Distributed under 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) |
| //======================================================================= |
| #ifndef BOOST_GRAPH_DETAIL_IS_SAME_HPP |
| #define BOOST_GRAPH_DETAIL_IS_SAME_HPP |
| |
| // Deprecate the use of this header. |
| // TODO: Remove this file from trunk/release in 1.41/1.42. |
| #if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__DMC__) |
| # pragma message ("Warning: This header is deprecated. Please use: boost/type_traits/is_same.hpp") |
| #elif defined(__GNUC__) || defined(__HP_aCC) || defined(__SUNPRO_CC) || defined(__IBMCPP__) |
| # warning "This header is deprecated. Please use: boost/type_traits/is_same.hpp" |
| #endif |
| |
| #include <boost/mpl/if.hpp> |
| |
| namespace boost { |
| struct false_tag; |
| struct true_tag; |
| |
| namespace graph_detail { |
| |
| #if !defined BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
| template <class U, class V> |
| struct is_same { |
| typedef boost::false_tag is_same_tag; |
| }; |
| template <class U> |
| struct is_same<U, U> { |
| typedef boost::true_tag is_same_tag; |
| }; |
| #else |
| template <class U, class V> |
| struct is_same { |
| enum { Unum = U::num, Vnum = V::num }; |
| typedef typename mpl::if_c< (Unum == Vnum), |
| boost::true_tag, boost::false_tag>::type is_same_tag; |
| }; |
| #endif |
| } // namespace graph_detail |
| } // namespace boost |
| |
| #endif |