1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// 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.
// $Source: /cvsroot/boost/boost/libs/mpl/test/fold.cpp,v $
// $Date: 2004/09/02 15:41:35 $
// $Revision: 1.4 $
#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> > ));
}
|
