Swift
summaryrefslogtreecommitdiffstats
path: root/3rdParty/Boost/boost/functional/hash/extensions.hpp
diff options
context:
space:
mode:
authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/functional/hash/extensions.hpp
downloadswift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip
swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2
Import.
Diffstat (limited to '3rdParty/Boost/boost/functional/hash/extensions.hpp')
-rw-r--r--3rdParty/Boost/boost/functional/hash/extensions.hpp182
1 files changed, 182 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/functional/hash/extensions.hpp b/3rdParty/Boost/boost/functional/hash/extensions.hpp
new file mode 100644
index 0000000..d173314
--- /dev/null
+++ b/3rdParty/Boost/boost/functional/hash/extensions.hpp
@@ -0,0 +1,182 @@
+
+// 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.
+
+#if !defined(BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP)
+#define BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+namespace boost
+{
+
+#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 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 boost::hash_range(v, v + size);
+ }
+ };
+ };
+
+ template <class T>
+ struct call_hash
+ : public call_hash_impl<boost::is_array<T>::value>
+ ::BOOST_NESTED_TEMPLATE inner<T>
+ {
+ };
+ }
+#endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+
+#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 boost::hash_range(val, val+n);
+ }
+ };
+#endif
+
+#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+ // On compilers without partial specialization, boost::hash<T>
+ // has already been declared to deal with pointers, so just
+ // need to supply the non-pointer version.
+
+ 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
+
+ // There's probably a more elegant way to Visual C++ 6.5 to work
+ // but I don't know what it is.
+
+ 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<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