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// Copyright (c) 2013 Louis Dionne
// Copyright (c) 2001-2013 Hartmut Kaiser
//
// 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/core/lightweight_test.hpp>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/spirit/include/karma.hpp>
#include <iostream>
#include <sstream>
// Note how the return is made by value instead of by reference.
template <typename T> T identity(T const& t) { return t; }
template <typename Char, typename Expr, typename CopyExpr, typename CopyAttr
, typename Delimiter, typename Attribute>
bool test(Char const *expected,
boost::spirit::karma::detail::format_manip<
Expr, CopyExpr, CopyAttr, Delimiter, Attribute> const& fm)
{
std::ostringstream ostrm;
ostrm << fm;
return ostrm.good() && ostrm.str() == expected;
}
int main()
{
namespace karma = boost::spirit::karma;
namespace adaptors = boost::adaptors;
int ints[] = {0, 1, 2, 3, 4};
BOOST_TEST((test("0 1 2 3 4",
karma::format(karma::int_ % ' ',
ints | adaptors::transformed(&identity<int>)))
));
return boost::report_errors();
}
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