66 lines
1021 B
C++
66 lines
1021 B
C++
//
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// visit_each_test.cpp
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//
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// Copyright 2014 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// 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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#include <boost/visit_each.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <string>
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struct X
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{
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int v;
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std::string w;
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};
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template<class Visitor> inline void visit_each( Visitor & visitor, X const & x )
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{
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using boost::visit_each;
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visit_each( visitor, x.v );
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visit_each( visitor, x.w );
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}
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struct V
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{
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int s_;
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V(): s_( 0 )
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{
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}
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template< class T > void operator()( T const & t )
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{
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}
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void operator()( int const & v )
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{
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s_ = s_ * 10 + v;
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}
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void operator()( std::string const & w )
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{
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s_ = s_ * 10 + w.size();
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}
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};
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int main()
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{
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X x = { 5, "test" };
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V v;
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{
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using boost::visit_each;
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visit_each( v, x );
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}
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BOOST_TEST( v.s_ == 54 );
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return boost::report_errors();
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}
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