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93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
// Boost.Range library
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//
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// Copyright Thorsten Ottosen 2003-2004. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (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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// For more information, see http://www.boost.org/libs/range/
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//
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#include <boost/detail/workaround.hpp>
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#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
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# pragma warn -8091 // suppress warning in Boost.Test
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# pragma warn -8057 // unused argument argc/argv in Boost.Test
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#endif
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#include <boost/range/functions.hpp>
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#include <boost/range/metafunctions.hpp>
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#include <boost/range/as_literal.hpp>
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#include <boost/test/test_tools.hpp>
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#include <iostream>
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#include <algorithm>
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#include <vector>
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#include <utility>
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namespace
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{
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//
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// example: extracting bounds in a generic algorithm
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//
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template< typename Range, typename T >
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inline typename boost::range_iterator<Range>::type
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find( Range& c, const T& value )
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{
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return std::find( boost::begin( c ), boost::end( c ), value );
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}
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template< typename Range, typename T >
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inline typename boost::range_iterator<Range>::type
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find( const Range& c, const T& value )
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{
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return std::find( boost::begin( c ), boost::end( c ), value );
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}
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//
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// replace first value and return its index
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//
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template< class Range, class T >
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inline typename boost::range_difference<Range>::type
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my_generic_replace( Range& c, const T& value, const T& replacement )
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{
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typename boost::range_iterator<Range>::type found = find( c, value );
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if( found != boost::end( c ) )
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*found = replacement;
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return std::distance( boost::begin( c ), found );
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}
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}
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void check_algorithm()
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{
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//
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// usage
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//
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const int N = 5;
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std::vector<int> my_vector;
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int values[] = { 1,2,3,4,5,6,7,8,9 };
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my_vector.assign( values, values + 9 );
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typedef std::vector<int>::iterator iterator;
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std::pair<iterator,iterator> my_view( boost::begin( my_vector ),
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boost::begin( my_vector ) + N );
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BOOST_CHECK_EQUAL( my_generic_replace( my_vector, 4, 2 ), 3 );
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BOOST_CHECK_EQUAL( my_generic_replace( my_view, 4, 2 ), N );
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}
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#include <boost/test/unit_test.hpp>
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using boost::unit_test::test_suite;
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test_suite* init_unit_test_suite( int argc, char* argv[] )
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{
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test_suite* test = BOOST_TEST_SUITE( "Range Test Suite" );
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test->add( BOOST_TEST_CASE( &check_algorithm ) );
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return test;
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}
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