Chris@16: //  (C) Copyright Gennadiy Rozental 2001-2008.
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //  (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org/libs/test for the library home page.
Chris@16: //
Chris@16: //  File        : $RCSfile$
Chris@16: //
Chris@101: //  Version     : $Revision$
Chris@16: //
Chris@16: //  Description : fixed sized mapping with specified invalid value
Chris@16: // ***************************************************************************
Chris@16: 
Chris@16: #ifndef BOOST_TEST_FIXED_MAPPING_HPP_071894GER
Chris@16: #define BOOST_TEST_FIXED_MAPPING_HPP_071894GER
Chris@16: 
Chris@16: // Boost
Chris@16: #include <boost/preprocessor/repetition/repeat.hpp>
Chris@16: #include <boost/preprocessor/arithmetic/add.hpp>
Chris@16: #include <boost/call_traits.hpp>
Chris@16: #include <boost/detail/binary_search.hpp>
Chris@16: 
Chris@16: // STL
Chris@16: #include <vector>
Chris@16: #include <functional>
Chris@16: #include <algorithm>
Chris@16: #include <utility>
Chris@16: 
Chris@16: #include <boost/test/detail/suppress_warnings.hpp>
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: namespace unit_test {
Chris@16: 
Chris@16: // configurable maximum fixed sized mapping size supported by this header.
Chris@16: // You can redefine it before inclusion of this file.
Chris@16: #ifndef MAX_MAP_SIZE
Chris@16: #define MAX_MAP_SIZE 20
Chris@16: #endif
Chris@16: 
Chris@16: #define CONSTR_DECL_MID( z, i, dummy1 ) key_param_type key##i, value_param_type v##i,
Chris@16: #define CONSTR_BODY_MID( z, i, dummy1 ) add_pair( key##i, v##i );
Chris@16: 
Chris@16: #define CONSTR_DECL( z, n, dummy1 )                                 \
Chris@16:     fixed_mapping( BOOST_PP_REPEAT_ ## z( n, CONSTR_DECL_MID, "" )  \
Chris@16:                          value_param_type invalid_value )           \
Chris@16:     : m_invalid_value( invalid_value )                              \
Chris@16:     {                                                               \
Chris@16:         BOOST_PP_REPEAT_ ## z( n, CONSTR_BODY_MID, "" )             \
Chris@16:         init();                                                     \
Chris@16:     }                                                               \
Chris@16: /**/
Chris@16: 
Chris@16: #define CONTRUCTORS( n ) BOOST_PP_REPEAT( n, CONSTR_DECL, "" )
Chris@16: 
Chris@16: template<typename Key, typename Value, typename Compare = std::less<Key> >
Chris@16: class fixed_mapping
Chris@16: {
Chris@16:     typedef std::pair<Key,Value>                            elem_type;
Chris@16:     typedef std::vector<elem_type>                          map_type;
Chris@16:     typedef typename std::vector<elem_type>::const_iterator iterator;
Chris@16: 
Chris@16:     typedef typename call_traits<Key>::param_type           key_param_type;
Chris@16:     typedef typename call_traits<Value>::param_type         value_param_type;
Chris@16:     typedef typename call_traits<Value>::const_reference    value_ref_type;
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
Chris@16:     struct p1; friend struct p1;
Chris@16:     struct p2; friend struct p2;
Chris@16: #endif
Chris@16: 
Chris@16:     // bind( Compare(), bind(select1st<elem_type>(), _1),  bind(identity<Key>(), _2) )
Chris@16:     struct p1 : public std::binary_function<elem_type,Key,bool>
Chris@16:     {
Chris@16:         bool operator()( elem_type const& x, Key const& y ) const { return Compare()( x.first, y ); }
Chris@16:     };
Chris@16: 
Chris@16:     // bind( Compare(), bind(select1st<elem_type>(), _1), bind(select1st<elem_type>(), _2) )
Chris@16:     struct p2 : public std::binary_function<elem_type,elem_type,bool>
Chris@16:     {
Chris@16:         bool operator()( elem_type const& x, elem_type const& y ) const { return Compare()( x.first, y.first ); }
Chris@16:     };
Chris@16: 
Chris@16: public:
Chris@16:     // Constructors
Chris@16:     CONTRUCTORS( BOOST_PP_ADD( MAX_MAP_SIZE, 1 ) )
Chris@16: 
Chris@16:     // key -> value access
Chris@16:     value_ref_type  operator[]( key_param_type key ) const
Chris@16:     {
Chris@16:         iterator it = boost::detail::lower_bound( m_map.begin(), m_map.end(), key, p1() );
Chris@16: 
Chris@16:         return (it == m_map.end() || Compare()( key, it->first ) ) ? m_invalid_value : it->second;
Chris@16:     }
Chris@16: 
Chris@16: private:
Chris@16:     // Implementation
Chris@16:     void            init()                                                  { std::sort( m_map.begin(), m_map.end(), p2() ); }
Chris@16:     void            add_pair( key_param_type key, value_param_type value )  { m_map.push_back( elem_type( key, value ) ); }
Chris@16: 
Chris@16:     // Data members
Chris@16:     Value           m_invalid_value;
Chris@16:     map_type        m_map;
Chris@16: };
Chris@16: 
Chris@16: } // namespace unit_test
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: #include <boost/test/detail/enable_warnings.hpp>
Chris@16: 
Chris@16: #undef MAX_MAP_SIZE
Chris@16: #undef CONSTR_DECL_MID
Chris@16: #undef CONSTR_BODY_MID
Chris@16: #undef CONSTR_DECL
Chris@16: #undef CONTRUCTORS
Chris@16: 
Chris@16: #endif // BOOST_TEST_FIXED_MAPPING_HPP_071894GER
Chris@16: