125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
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// (C) Copyright Gennadiy Rozental 2001-2008.
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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/libs/test for the library home page.
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//
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// File : $RCSfile$
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//
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// Version : $Revision: 54633 $
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//
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// Description : fixed sized mapping with specified invalid value
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// ***************************************************************************
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#ifndef BOOST_TEST_FIXED_MAPPING_HPP_071894GER
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#define BOOST_TEST_FIXED_MAPPING_HPP_071894GER
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// Boost
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#include <boost/preprocessor/repetition/repeat.hpp>
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#include <boost/preprocessor/arithmetic/add.hpp>
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#include <boost/call_traits.hpp>
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#include <boost/detail/binary_search.hpp>
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// STL
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#include <vector>
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#include <functional>
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#include <algorithm>
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#include <utility>
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#include <boost/test/detail/suppress_warnings.hpp>
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//____________________________________________________________________________//
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namespace boost {
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namespace unit_test {
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// configurable maximum fixed sized mapping size supported by this header.
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// You can redefine it before inclusion of this file.
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#ifndef MAX_MAP_SIZE
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#define MAX_MAP_SIZE 20
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#endif
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#define CONSTR_DECL_MID( z, i, dummy1 ) key_param_type key##i, value_param_type v##i,
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#define CONSTR_BODY_MID( z, i, dummy1 ) add_pair( key##i, v##i );
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#define CONSTR_DECL( z, n, dummy1 ) \
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fixed_mapping( BOOST_PP_REPEAT_ ## z( n, CONSTR_DECL_MID, "" ) \
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value_param_type invalid_value ) \
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: m_invalid_value( invalid_value ) \
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{ \
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BOOST_PP_REPEAT_ ## z( n, CONSTR_BODY_MID, "" ) \
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init(); \
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} \
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/**/
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#define CONTRUCTORS( n ) BOOST_PP_REPEAT( n, CONSTR_DECL, "" )
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template<typename Key, typename Value, typename Compare = std::less<Key> >
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class fixed_mapping
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{
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typedef std::pair<Key,Value> elem_type;
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typedef std::vector<elem_type> map_type;
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typedef typename std::vector<elem_type>::const_iterator iterator;
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typedef typename call_traits<Key>::param_type key_param_type;
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typedef typename call_traits<Value>::param_type value_param_type;
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typedef typename call_traits<Value>::const_reference value_ref_type;
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#if BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
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struct p1; friend struct p1;
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struct p2; friend struct p2;
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#endif
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// bind( Compare(), bind(select1st<elem_type>(), _1), bind(identity<Key>(), _2) )
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struct p1 : public std::binary_function<elem_type,Key,bool>
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{
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bool operator()( elem_type const& x, Key const& y ) const { return Compare()( x.first, y ); }
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};
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// bind( Compare(), bind(select1st<elem_type>(), _1), bind(select1st<elem_type>(), _2) )
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struct p2 : public std::binary_function<elem_type,elem_type,bool>
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{
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bool operator()( elem_type const& x, elem_type const& y ) const { return Compare()( x.first, y.first ); }
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};
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public:
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// Constructors
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CONTRUCTORS( BOOST_PP_ADD( MAX_MAP_SIZE, 1 ) )
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// key -> value access
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value_ref_type operator[]( key_param_type key ) const
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{
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iterator it = boost::detail::lower_bound( m_map.begin(), m_map.end(), key, p1() );
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return (it == m_map.end() || Compare()( key, it->first ) ) ? m_invalid_value : it->second;
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}
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private:
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// Implementation
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void init() { std::sort( m_map.begin(), m_map.end(), p2() ); }
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void add_pair( key_param_type key, value_param_type value ) { m_map.push_back( elem_type( key, value ) ); }
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// Data members
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Value m_invalid_value;
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map_type m_map;
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};
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} // namespace unit_test
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} // namespace boost
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//____________________________________________________________________________//
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#include <boost/test/detail/enable_warnings.hpp>
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#undef MAX_MAP_SIZE
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#undef CONSTR_DECL_MID
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#undef CONSTR_BODY_MID
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#undef CONSTR_DECL
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#undef CONTRUCTORS
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#endif // BOOST_TEST_FIXED_MAPPING_HPP_071894GER
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