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author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:21:29 +0200 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:21:29 +0200 |
commit | bada6666c70977a058755ccf232e7d67b24adeed (patch) | |
tree | 1e92d50cebce96abaf9bce19e36026c47f77b9ba /libcutl/cutl/details/boost/functional/hash/extensions.hpp | |
parent | eaf34adcbd8095bc6d1f3371b1227f654c7b19fc (diff) |
New upstream release
Diffstat (limited to 'libcutl/cutl/details/boost/functional/hash/extensions.hpp')
-rw-r--r-- | libcutl/cutl/details/boost/functional/hash/extensions.hpp | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/libcutl/cutl/details/boost/functional/hash/extensions.hpp b/libcutl/cutl/details/boost/functional/hash/extensions.hpp new file mode 100644 index 0000000..91771b4 --- /dev/null +++ b/libcutl/cutl/details/boost/functional/hash/extensions.hpp @@ -0,0 +1,379 @@ + +// Copyright 2005-2009 Daniel James. +// 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) + +// Based on Peter Dimov's proposal +// http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf +// issue 6.18. + +// This implements the extensions to the standard. +// It's undocumented, so you shouldn't use it.... + +#if !defined(BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP) +#define BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP + +#include <cutl/details/boost/functional/hash/hash.hpp> +#include <cutl/details/boost/detail/container_fwd.hpp> +#include <cutl/details/boost/utility/enable_if.hpp> +#include <cutl/details/boost/static_assert.hpp> +#include <cutl/details/boost/preprocessor/repetition/repeat_from_to.hpp> +#include <cutl/details/boost/preprocessor/repetition/enum_params.hpp> + +#if !defined(BOOST_NO_CXX11_HDR_ARRAY) +# include <array> +#endif + +#if !defined(BOOST_NO_CXX11_HDR_TUPLE) +# include <tuple> +#endif + +#if !defined(BOOST_NO_CXX11_HDR_MEMORY) +# include <memory> +#endif + +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma once +#endif + +#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) +#include <cutl/details/boost/type_traits/is_array.hpp> +#endif + +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) +#include <cutl/details/boost/type_traits/is_const.hpp> +#endif + +namespace cutl_details_boost +{ + template <class A, class B> + std::size_t hash_value(std::pair<A, B> const&); + template <class T, class A> + std::size_t hash_value(std::vector<T, A> const&); + template <class T, class A> + std::size_t hash_value(std::list<T, A> const& v); + template <class T, class A> + std::size_t hash_value(std::deque<T, A> const& v); + template <class K, class C, class A> + std::size_t hash_value(std::set<K, C, A> const& v); + template <class K, class C, class A> + std::size_t hash_value(std::multiset<K, C, A> const& v); + template <class K, class T, class C, class A> + std::size_t hash_value(std::map<K, T, C, A> const& v); + template <class K, class T, class C, class A> + std::size_t hash_value(std::multimap<K, T, C, A> const& v); + + template <class T> + std::size_t hash_value(std::complex<T> const&); + + template <class A, class B> + std::size_t hash_value(std::pair<A, B> const& v) + { + std::size_t seed = 0; + cutl_details_boost::hash_combine(seed, v.first); + cutl_details_boost::hash_combine(seed, v.second); + return seed; + } + + template <class T, class A> + std::size_t hash_value(std::vector<T, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class T, class A> + std::size_t hash_value(std::list<T, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class T, class A> + std::size_t hash_value(std::deque<T, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class K, class C, class A> + std::size_t hash_value(std::set<K, C, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class K, class C, class A> + std::size_t hash_value(std::multiset<K, C, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class K, class T, class C, class A> + std::size_t hash_value(std::map<K, T, C, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class K, class T, class C, class A> + std::size_t hash_value(std::multimap<K, T, C, A> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } + + template <class T> + std::size_t hash_value(std::complex<T> const& v) + { + cutl_details_boost::hash<T> hasher; + std::size_t seed = hasher(v.imag()); + seed ^= hasher(v.real()) + (seed<<6) + (seed>>2); + return seed; + } + +#if !defined(BOOST_NO_CXX11_HDR_ARRAY) + template <class T, std::size_t N> + std::size_t hash_value(std::array<T, N> const& v) + { + return cutl_details_boost::hash_range(v.begin(), v.end()); + } +#endif + +#if !defined(BOOST_NO_CXX11_HDR_TUPLE) + namespace hash_detail { + template <std::size_t I, typename T> + inline typename cutl_details_boost::enable_if_c<(I == std::tuple_size<T>::value), + void>::type + hash_combine_tuple(std::size_t&, T const&) + { + } + + template <std::size_t I, typename T> + inline typename cutl_details_boost::enable_if_c<(I < std::tuple_size<T>::value), + void>::type + hash_combine_tuple(std::size_t& seed, T const& v) + { + cutl_details_boost::hash_combine(seed, std::get<I>(v)); + cutl_details_boost::hash_detail::hash_combine_tuple<I + 1>(seed, v); + } + + template <typename T> + inline std::size_t hash_tuple(T const& v) + { + std::size_t seed = 0; + cutl_details_boost::hash_detail::hash_combine_tuple<0>(seed, v); + return seed; + } + } + +#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) + template <typename... T> + inline std::size_t hash_value(std::tuple<T...> const& v) + { + return cutl_details_boost::hash_detail::hash_tuple(v); + } +#else + + inline std::size_t hash_value(std::tuple<> const& v) + { + return cutl_details_boost::hash_detail::hash_tuple(v); + } + +# define BOOST_HASH_TUPLE_F(z, n, _) \ + template< \ + BOOST_PP_ENUM_PARAMS_Z(z, n, typename A) \ + > \ + inline std::size_t hash_value(std::tuple< \ + BOOST_PP_ENUM_PARAMS_Z(z, n, A) \ + > const& v) \ + { \ + return cutl_details_boost::hash_detail::hash_tuple(v); \ + } + + BOOST_PP_REPEAT_FROM_TO(1, 11, BOOST_HASH_TUPLE_F, _) +# undef BOOST_HASH_TUPLE_F +#endif + +#endif + +#if !defined(BOOST_NO_CXX11_SMART_PTR) + template <typename T> + inline std::size_t hash_value(std::shared_ptr<T> const& x) { + return cutl_details_boost::hash_value(x.get()); + } + + template <typename T, typename Deleter> + inline std::size_t hash_value(std::unique_ptr<T, Deleter> const& x) { + return cutl_details_boost::hash_value(x.get()); + } +#endif + + // + // call_hash_impl + // + + // On compilers without function template ordering, this deals with arrays. + +#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) + namespace hash_detail + { + template <bool IsArray> + struct call_hash_impl + { + template <class T> + struct inner + { + static std::size_t call(T const& v) + { + using namespace cutl_details_boost; + return hash_value(v); + } + }; + }; + + template <> + struct call_hash_impl<true> + { + template <class Array> + struct inner + { +#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) + static std::size_t call(Array const& v) +#else + static std::size_t call(Array& v) +#endif + { + const int size = sizeof(v) / sizeof(*v); + return cutl_details_boost::hash_range(v, v + size); + } + }; + }; + + template <class T> + struct call_hash + : public call_hash_impl<cutl_details_boost::is_array<T>::value> + ::BOOST_NESTED_TEMPLATE inner<T> + { + }; + } +#endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING + + // + // cutl_details_boost::hash + // + + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + + template <class T> struct hash + : std::unary_function<T, std::size_t> + { +#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) + std::size_t operator()(T const& val) const + { + return hash_value(val); + } +#else + std::size_t operator()(T const& val) const + { + return hash_detail::call_hash<T>::call(val); + } +#endif + }; + +#if BOOST_WORKAROUND(__DMC__, <= 0x848) + template <class T, unsigned int n> struct hash<T[n]> + : std::unary_function<T[n], std::size_t> + { + std::size_t operator()(const T* val) const + { + return cutl_details_boost::hash_range(val, val+n); + } + }; +#endif + +#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION + + // On compilers without partial specialization, cutl_details_boost::hash<T> + // has already been declared to deal with pointers, so just + // need to supply the non-pointer version of hash_impl. + + namespace hash_detail + { + template <bool IsPointer> + struct hash_impl; + +#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) + + template <> + struct hash_impl<false> + { + template <class T> + struct inner + : std::unary_function<T, std::size_t> + { +#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) + std::size_t operator()(T const& val) const + { + return hash_value(val); + } +#else + std::size_t operator()(T const& val) const + { + return hash_detail::call_hash<T>::call(val); + } +#endif + }; + }; + +#else // Visual C++ 6.5 + + // Visual C++ 6.5 has problems with nested member functions and + // applying const to const types in templates. So we get this: + + template <bool IsConst> + struct hash_impl_msvc + { + template <class T> + struct inner + : public std::unary_function<T, std::size_t> + { + std::size_t operator()(T const& val) const + { + return hash_detail::call_hash<T const>::call(val); + } + + std::size_t operator()(T& val) const + { + return hash_detail::call_hash<T>::call(val); + } + }; + }; + + template <> + struct hash_impl_msvc<true> + { + template <class T> + struct inner + : public std::unary_function<T, std::size_t> + { + std::size_t operator()(T& val) const + { + return hash_detail::call_hash<T>::call(val); + } + }; + }; + + template <class T> + struct hash_impl_msvc2 + : public hash_impl_msvc<cutl_details_boost::is_const<T>::value> + ::BOOST_NESTED_TEMPLATE inner<T> {}; + + template <> + struct hash_impl<false> + { + template <class T> + struct inner : public hash_impl_msvc2<T> {}; + }; + +#endif // Visual C++ 6.5 + } +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION +} + +#endif |