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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2011 Eric Niebler
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 <string>
#include <sstream>
#include <iostream>
#include <boost/detail/lightweight_test.hpp>
#include <boost/fusion/container/vector/vector.hpp>
#include <boost/fusion/algorithm/iteration/fold.hpp>
#include <boost/fusion/container/generation/make_vector.hpp>
#include "../sequence/tree.hpp"
struct write_string
{
typedef std::ostream* result_type;
template<typename T>
std::ostream* operator()(std::ostream* sout, T const& t) const
{
return &(*sout << t << " ");
}
};
template<typename Tree>
void
process_tree(Tree const &tree)
{
using namespace boost;
std::stringstream str;
fusion::fold(tree, &str, write_string());
std::string res = str.str();
BOOST_TEST_EQ(res, "a b c 1 2 3 100 e f 0 B 1 h i 4 5 6 j k l ");
}
int
main()
{
using namespace boost::fusion;
process_tree(
make_tree(
make_vector(double(0),'B')
, make_tree(
make_vector(1,2,long(3))
, make_tree(make_vector('a','b','c'))
, make_tree(make_vector(short('d'),'e','f'))
)
, make_tree(
make_vector(4,5,6)
, make_tree(make_vector(float(1),'h','i'))
, make_tree(make_vector('j','k','l'))
)
)
);
return boost::report_errors();
}
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