// Boost.Range library // // Copyright Thorsten Ottosen 2003-2004. Use, modification and // distribution is subject to the Boost Software License, Version // 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // For more information, see http://www.boost.org/libs/range/ // #include #include #include #include #include namespace { template< typename ExternalCollection, typename T > inline typename boost::iterator_of::type find( ExternalCollection& c, const T& value ) { return std::find( boost::begin( c ), boost::end( c ), value ); } template< typename ExternalCollection, typename T > inline typename boost::const_iterator_of::type find( const ExternalCollection& c, const T& value ) { return std::find( boost::begin( c ), boost::end( c ), value ); } // // replace first value and return its index // template< typename EC, typename T > inline typename boost::size_type_of< EC >::type my_generic_replace( EC& c, const T& value, const T& replacement ) { typename boost::iterator_of::type found = find( c, value ); if( found != boost::end( c ) ) *found = replacement; return std::distance( boost::begin( c ), found ); } } int main() { const int N = 5; int v[] = { 1,2,3,4,5,6,6,7,8,9 }; std::vector my_vector; my_vector.assign( boost::begin( v ), boost::end( v ) ); typedef std::vector::iterator iterator; std::pair my_view( boost::begin( my_vector ), boost::begin( my_vector ) + N ); char str[] = "a string"; std::cout << my_generic_replace( my_vector, 4, 2 ) << my_generic_replace( my_view, 4, 2 ) << my_generic_replace( str, 'a', 'b' ); return 0; }