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- // Copyright Aleksey Gurtovoy 2000-2004
- //
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- //
- // See http://www.boost.org/libs/mpl for documentation.
- // $Id$
- // $Date$
- // $Revision$
- #include <boost/mpl/fold.hpp>
- #include <boost/mpl/reverse_fold.hpp>
- //#include <boost/mpl/vector.hpp>
- #include <boost/mpl/list.hpp>
- #include <boost/mpl/list_c.hpp>
- #include <boost/mpl/equal.hpp>
- #include <boost/mpl/equal_to.hpp>
- #include <boost/mpl/next.hpp>
- #include <boost/mpl/push_front.hpp>
- #include <boost/mpl/if.hpp>
- #include <boost/mpl/less.hpp>
- #include <boost/mpl/int.hpp>
- #include <boost/mpl/at.hpp>
- #include <boost/mpl/size.hpp>
- #include <boost/type_traits/is_float.hpp>
- #include <boost/mpl/aux_/test.hpp>
- MPL_TEST_CASE()
- {
- typedef list<long,float,short,double,float,long,long double> types;
- typedef fold<
- types
- , int_<0>
- , if_< boost::is_float<_2>,next<_1>,_1 >
- >::type number_of_floats;
- MPL_ASSERT_RELATION( number_of_floats::value, ==, 4 );
- }
- MPL_TEST_CASE()
- {
- typedef list_c<int,5,-1,0,-7,-2,0,-5,4> numbers;
- typedef list_c<int,-1,-7,-2,-5> negatives;
- typedef reverse_fold<
- numbers
- , list_c<int>
- , if_< less< _2,int_<0> >, push_front<_1,_2>, _1 >
- >::type result;
- MPL_ASSERT(( equal< result,negatives,equal_to<_1,_2> > ));
- }
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