55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
// (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 <boost/core/lightweight_test.hpp>
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// 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 <boost/foreach.hpp>
|
|
|
|
namespace boost
|
|
{
|
|
template<>
|
|
struct range_mutable_iterator<mine::dummy>
|
|
{
|
|
typedef char * type;
|
|
};
|
|
template<>
|
|
struct range_const_iterator<mine::dummy>
|
|
{
|
|
typedef char const * type;
|
|
};
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// test_main
|
|
//
|
|
int main()
|
|
{
|
|
// loop over a user-defined type (just make sure this compiles)
|
|
mine::dummy d;
|
|
BOOST_FOREACH( char c, d )
|
|
{
|
|
((void)c); // no-op
|
|
}
|
|
|
|
return boost::report_errors();
|
|
}
|