56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
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// Copyright Aleksey Gurtovoy 2000-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See 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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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/fold.hpp>
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#include <boost/mpl/reverse_fold.hpp>
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//#include <boost/mpl/vector.hpp>
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#include <boost/mpl/list.hpp>
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#include <boost/mpl/list_c.hpp>
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#include <boost/mpl/equal.hpp>
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#include <boost/mpl/equal_to.hpp>
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#include <boost/mpl/next.hpp>
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#include <boost/mpl/push_front.hpp>
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#include <boost/mpl/if.hpp>
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#include <boost/mpl/less.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/mpl/at.hpp>
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#include <boost/mpl/size.hpp>
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#include <boost/type_traits/is_float.hpp>
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#include <boost/mpl/aux_/test.hpp>
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MPL_TEST_CASE()
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{
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typedef list<long,float,short,double,float,long,long double> types;
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typedef fold<
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types
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, int_<0>
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, if_< boost::is_float<_2>,next<_1>,_1 >
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>::type number_of_floats;
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MPL_ASSERT_RELATION( number_of_floats::value, ==, 4 );
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}
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MPL_TEST_CASE()
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{
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typedef list_c<int,5,-1,0,-7,-2,0,-5,4> numbers;
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typedef list_c<int,-1,-7,-2,-5> negatives;
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typedef reverse_fold<
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numbers
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, list_c<int>
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, if_< less< _2,int_<0> >, push_front<_1,_2>, _1 >
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>::type result;
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MPL_ASSERT(( equal< result,negatives,equal_to<_1,_2> > ));
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}
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