williamr@2: williamr@2: // Copyright Daniel James 2005-2006. Use, modification, and distribution are williamr@2: // subject to the Boost Software License, Version 1.0. (See accompanying williamr@2: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) williamr@2: williamr@2: // Based on Peter Dimov's proposal williamr@2: // http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf williamr@2: // issue 6.18. williamr@2: williamr@2: #if !defined(BOOST_FUNCTIONAL_HASH_FWD_HPP) williamr@2: #define BOOST_FUNCTIONAL_HASH_FWD_HPP williamr@2: williamr@2: #if defined(_MSC_VER) && (_MSC_VER >= 1020) williamr@2: # pragma once williamr@2: #endif williamr@2: williamr@2: #include williamr@2: #include williamr@2: #include williamr@2: williamr@2: namespace boost williamr@2: { williamr@2: template struct hash; williamr@2: williamr@2: #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) williamr@2: template void hash_combine(std::size_t& seed, T& v); williamr@2: #else williamr@2: template void hash_combine(std::size_t& seed, T const& v); williamr@2: #endif williamr@2: williamr@2: template std::size_t hash_range(It, It); williamr@2: template void hash_range(std::size_t&, It, It); williamr@2: williamr@2: #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551)) williamr@2: template inline std::size_t hash_range(T*, T*); williamr@2: template inline void hash_range(std::size_t&, T*, T*); williamr@2: #endif williamr@2: } williamr@2: williamr@2: #endif