forked from boostorg/mpl
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/test/copy_backward_if.cpp source file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2000-02
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// Aleksey Gurtovoy
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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#include "boost/mpl/copy_backward_if.hpp"
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#include "boost/mpl/list.hpp"
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#include "boost/mpl/push_front.hpp"
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#include "boost/mpl/size.hpp"
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#include "boost/mpl/equal.hpp"
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#include "boost/type_traits/is_float.hpp"
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#include "boost/static_assert.hpp"
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namespace mpl = boost::mpl;
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using mpl::_;
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int main()
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{
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typedef mpl::list<int,float,long,float,char,long,double,double>::type types;
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typedef mpl::list<float,float,double,double>::type float_types;
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typedef mpl::copy_backward_if<
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types
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, mpl::list0<>
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, mpl::push_front<_,_>
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, boost::is_float<_>
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>::type result;
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BOOST_STATIC_ASSERT(mpl::size<result>::value == 4);
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BOOST_STATIC_ASSERT((mpl::equal<result,result>::type::value));
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return 0;
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}
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