boost/functional/hash/hash_fwd.hpp

   1
   2 // Copyright 2005-2009 Daniel James.
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  Based on Peter Dimov's proposal
   7 //  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
   8 //  issue 6.18.
   9
  10 #if !defined(BOOST_FUNCTIONAL_HASH_FWD_HPP)
  11 #define BOOST_FUNCTIONAL_HASH_FWD_HPP
  12
  13 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
  14 # pragma once
  15 #endif
  16
  17 #include <boost/config.hpp>
  18 #include <cstddef>
  19 #include <boost/detail/workaround.hpp>
  20
  21 namespace boost
  22 {
  23     template <class T> struct hash;
  24
  25 #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  26     template <class T> void hash_combine(std::size_t& seed, T& v);
  27 #else
  28     template <class T> void hash_combine(std::size_t& seed, T const& v);
  29 #endif
  30
  31     template <class It> std::size_t hash_range(It, It);
  32     template <class It> void hash_range(std::size_t&, It, It);
  33
  34 #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
  35     template <class T> inline std::size_t hash_range(T*, T*);
  36     template <class T> inline void hash_range(std::size_t&, T*, T*);
  37 #endif
  38 }
  39
  40 #endif