1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465 |
- //
- // visit_each_test.cpp
- //
- // Copyright 2014 Peter Dimov
- //
- // Distributed under 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
- //
- #include <boost/visit_each.hpp>
- #include <boost/core/lightweight_test.hpp>
- #include <string>
- struct X
- {
- int v;
- std::string w;
- };
- template<class Visitor> inline void visit_each( Visitor & visitor, X const & x )
- {
- using boost::visit_each;
- visit_each( visitor, x.v );
- visit_each( visitor, x.w );
- }
- struct V
- {
- int s_;
- V(): s_( 0 )
- {
- }
- template< class T > void operator()( T const & t )
- {
- }
- void operator()( int const & v )
- {
- s_ = s_ * 10 + v;
- }
- void operator()( std::string const & w )
- {
- s_ = s_ * 10 + w.size();
- }
- };
- int main()
- {
- X x = { 5, "test" };
- V v;
- {
- using boost::visit_each;
- visit_each( v, x );
- }
- BOOST_TEST( v.s_ == 54 );
- return boost::report_errors();
- }
|