43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
// Copyright (c) 2013 Louis Dionne
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// Copyright (c) 2001-2013 Hartmut Kaiser
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/config/warning_disable.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/range/adaptor/transformed.hpp>
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#include <boost/spirit/include/karma.hpp>
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#include <iostream>
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// Note how the return is made by value instead of by reference.
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template <typename T> T identity(T const& t) { return t; }
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template <typename Char, typename Expr, typename CopyExpr, typename CopyAttr
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, typename Delimiter, typename Attribute>
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bool test(Char const *expected,
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boost::spirit::karma::detail::format_manip<
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Expr, CopyExpr, CopyAttr, Delimiter, Attribute> const& fm)
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{
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std::ostringstream ostrm;
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ostrm << fm;
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return ostrm.good() && ostrm.str() == expected;
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}
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int main()
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{
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namespace karma = boost::spirit::karma;
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namespace adaptors = boost::adaptors;
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int ints[] = {0, 1, 2, 3, 4};
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BOOST_TEST((test("0 1 2 3 4",
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karma::format(karma::int_ % ' ',
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ints | adaptors::transformed(&identity<int>)))
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));
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return boost::report_errors();
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}
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