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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/config/warning_disable.hpp>
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/range/adaptor/transformed.hpp>
- #include <boost/spirit/include/karma.hpp>
- #include <iostream>
- // 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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