Added boost header
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Christophe Riccio
199
test/external/boost/algorithm/string/compare.hpp
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199
test/external/boost/algorithm/string/compare.hpp
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// Boost string_algo library compare.hpp header file -------------------------//
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// Copyright Pavol Droba 2002-2006.
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//
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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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// See http://www.boost.org/ for updates, documentation, and revision history.
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#ifndef BOOST_STRING_COMPARE_HPP
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#define BOOST_STRING_COMPARE_HPP
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#include <boost/algorithm/string/config.hpp>
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#include <locale>
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/*! \file
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Defines element comparison predicates. Many algorithms in this library can
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take an additional argument with a predicate used to compare elements.
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This makes it possible, for instance, to have case insensitive versions
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of the algorithms.
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*/
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namespace boost {
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namespace algorithm {
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// is_equal functor -----------------------------------------------//
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//! is_equal functor
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/*!
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Standard STL equal_to only handle comparison between arguments
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of the same type. This is a less restrictive version which wraps operator ==.
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*/
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struct is_equal
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{
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//! Function operator
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/*!
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Compare two operands for equality
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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return Arg1==Arg2;
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}
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};
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//! case insensitive version of is_equal
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/*!
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Case insensitive comparison predicate. Comparison is done using
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specified locales.
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*/
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struct is_iequal
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{
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//! Constructor
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/*!
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\param Loc locales used for comparison
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*/
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is_iequal( const std::locale& Loc=std::locale() ) :
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m_Loc( Loc ) {}
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//! Function operator
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/*!
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Compare two operands. Case is ignored.
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
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return std::toupper(Arg1)==std::toupper(Arg2);
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#else
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return std::toupper<T1>(Arg1,m_Loc)==std::toupper<T2>(Arg2,m_Loc);
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#endif
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}
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private:
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std::locale m_Loc;
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};
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// is_less functor -----------------------------------------------//
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//! is_less functor
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/*!
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Convenient version of standard std::less. Operation is templated, therefore it is
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not required to specify the exact types upon the construction
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*/
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struct is_less
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{
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//! Functor operation
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/*!
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Compare two operands using > operator
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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return Arg1<Arg2;
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}
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};
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//! case insensitive version of is_less
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/*!
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Case insensitive comparison predicate. Comparison is done using
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specified locales.
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*/
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struct is_iless
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{
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//! Constructor
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/*!
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\param Loc locales used for comparison
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*/
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is_iless( const std::locale& Loc=std::locale() ) :
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m_Loc( Loc ) {}
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//! Function operator
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/*!
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Compare two operands. Case is ignored.
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
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return std::toupper(Arg1)<std::toupper(Arg2);
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#else
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return std::toupper<T1>(Arg1,m_Loc)<std::toupper<T2>(Arg2,m_Loc);
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#endif
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}
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private:
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std::locale m_Loc;
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};
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// is_not_greater functor -----------------------------------------------//
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//! is_not_greater functor
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/*!
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Convenient version of standard std::not_greater_to. Operation is templated, therefore it is
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not required to specify the exact types upon the construction
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*/
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struct is_not_greater
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{
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//! Functor operation
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/*!
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Compare two operands using > operator
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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return Arg1<=Arg2;
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}
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};
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//! case insensitive version of is_not_greater
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/*!
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Case insensitive comparison predicate. Comparison is done using
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specified locales.
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*/
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struct is_not_igreater
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{
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//! Constructor
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/*!
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\param Loc locales used for comparison
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*/
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is_not_igreater( const std::locale& Loc=std::locale() ) :
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m_Loc( Loc ) {}
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//! Function operator
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/*!
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Compare two operands. Case is ignored.
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*/
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template< typename T1, typename T2 >
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bool operator()( const T1& Arg1, const T2& Arg2 ) const
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{
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#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
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return std::toupper(Arg1)<=std::toupper(Arg2);
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#else
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return std::toupper<T1>(Arg1,m_Loc)<=std::toupper<T2>(Arg2,m_Loc);
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#endif
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}
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private:
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std::locale m_Loc;
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};
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} // namespace algorithm
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// pull names to the boost namespace
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using algorithm::is_equal;
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using algorithm::is_iequal;
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using algorithm::is_less;
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using algorithm::is_iless;
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using algorithm::is_not_greater;
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using algorithm::is_not_igreater;
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} // namespace boost
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#endif // BOOST_STRING_COMPARE_HPP
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