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46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/test/push_front.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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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#include "boost/mpl/push_front.hpp"
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#include "boost/mpl/list.hpp"
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#include "boost/mpl/size.hpp"
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#include "boost/mpl/front.hpp"
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#include "boost/mpl/assert_is_same.hpp"
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#include "boost/static_assert.hpp"
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namespace mpl = boost::mpl;
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int main()
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{
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typedef mpl::list<>::type types1;
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typedef mpl::list<long>::type types2;
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typedef mpl::list<int,long>::type types3;
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typedef mpl::push_front<types1,long>::type result1;
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typedef mpl::push_front<types2,int>::type result2;
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typedef mpl::push_front<types3,char>::type result3;
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BOOST_STATIC_ASSERT(mpl::size<result1>::type::value == 1);
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BOOST_STATIC_ASSERT(mpl::size<result2>::type::value == 2);
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BOOST_STATIC_ASSERT(mpl::size<result3>::type::value == 3);
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BOOST_MPL_ASSERT_IS_SAME(mpl::front<result1>::type, long);
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BOOST_MPL_ASSERT_IS_SAME(mpl::front<result2>::type, int);
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BOOST_MPL_ASSERT_IS_SAME(mpl::front<result3>::type, char);
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return 0;
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}
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