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46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/test/find_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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// 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/find_if.hpp"
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#include "boost/mpl/list.hpp"
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#include "boost/mpl/distance.hpp"
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#include "boost/mpl/assert_is_same.hpp"
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#include "boost/type_traits/is_float.hpp"
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#include "boost/type_traits/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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using namespace mpl::placeholder;
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typedef mpl::list9<int,char,long,short,char,long,double,float,char>::type types;
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typedef mpl::find_if< types, boost::is_float<_> >::type iter1;
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typedef mpl::find_if< types, boost::is_same<_,long> >::type iter2;
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typedef mpl::find_if< types, boost::is_same<_,void> >::type iter3;
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BOOST_MPL_ASSERT_IS_SAME(iter1::type, double);
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BOOST_MPL_ASSERT_IS_SAME(iter2::type, long);
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BOOST_MPL_ASSERT_IS_SAME(iter3, mpl::end<types>::type);
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typedef mpl::begin<types>::type first;
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BOOST_STATIC_ASSERT((mpl::distance<first,iter1>::type::value == 6));
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BOOST_STATIC_ASSERT((mpl::distance<first,iter2>::type::value == 2));
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return 0;
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}
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