author | William Roberts <williamr@symbian.org> |
Wed, 31 Mar 2010 12:27:01 +0100 | |
branch | Symbian2 |
changeset 3 | e1b950c65cb4 |
permissions | -rw-r--r-- |
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/* Copyright 2003-2005 Joaquín M López Muñoz. |
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* Distributed under the Boost Software License, Version 1.0. |
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* (See accompanying file LICENSE_1_0.txt or copy at |
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* http://www.boost.org/LICENSE_1_0.txt) |
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* |
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* See http://www.boost.org/libs/multi_index for library home page. |
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*/ |
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|
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#ifndef BOOST_MULTI_INDEX_DETAIL_VALUE_COMPARE_HPP |
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#define BOOST_MULTI_INDEX_DETAIL_VALUE_COMPARE_HPP |
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|
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#if defined(_MSC_VER)&&(_MSC_VER>=1200) |
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#pragma once |
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#endif |
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|
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ |
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#include <boost/call_traits.hpp> |
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#include <functional> |
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namespace boost{ |
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|
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namespace multi_index{ |
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namespace detail{ |
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template<typename Value,typename KeyFromValue,typename Compare> |
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struct value_comparison:std::binary_function<Value,Value,bool> |
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{ |
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value_comparison(KeyFromValue key_=KeyFromValue(),Compare comp_=Compare()): |
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key(key_),comp(comp_) |
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{ |
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} |
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|
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bool operator()( |
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typename call_traits<Value>::param_type x, |
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typename call_traits<Value>::param_type y)const |
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{ |
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return comp(key(x),key(y)); |
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} |
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private: |
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KeyFromValue key; |
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Compare comp; |
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}; |
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} /* namespace multi_index::detail */ |
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} /* namespace multi_index */ |
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} /* namespace boost */ |
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#endif |