// (C) Copyright Eric Niebler 2005. // Use, modification and distribution are 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) /* Revision history: 25 August 2005 : Initial version. */ #include /////////////////////////////////////////////////////////////////////////////// // define a user-defined collection type and teach BOOST_FOREACH how to enumerate it // namespace mine { struct dummy {}; char * range_begin(mine::dummy&) {return 0;} char const * range_begin(mine::dummy const&) {return 0;} char * range_end(mine::dummy&) {return 0;} char const * range_end(mine::dummy const&) {return 0;} } #include namespace boost { template<> struct range_mutable_iterator { typedef char * type; }; template<> struct range_const_iterator { typedef char const * type; }; } /////////////////////////////////////////////////////////////////////////////// // test_main // int test_main( int, char*[] ) { // loop over a user-defined type (just make sure this compiles) mine::dummy d; BOOST_FOREACH( char c, d ) { ((void)c); // no-op } return 0; }