1 // Copyright (C) 2005, 2009 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // 25.3.2 [lib.alg.nth.element]
21 #include <testsuite_hooks.h>
22 #include <testsuite_iterators.h>
24 using __gnu_test::test_container
;
25 using __gnu_test::random_access_iterator_wrapper
;
26 using std::nth_element
;
27 using std::partial_sort
;
29 typedef test_container
<int, random_access_iterator_wrapper
> Container
;
35 Container
con(array
, array
);
36 partial_sort(con
.begin(), con
.begin(), con
.end());
43 Container
con(array
, array
+ 2);
44 partial_sort(con
.begin(), con
.begin(), con
.end());
45 partial_sort(con
.begin(), con
.end(), con
.end());
51 bool test
__attribute__((unused
)) = true;
52 int array
[] = {6, 5, 4, 3, 2, 1, 0};
53 Container
con(array
, array
+ 7);
54 nth_element(con
.begin(), con
.it(3), con
.end());
55 for(int i
= 0; i
< 3; ++i
)
56 VERIFY(array
[i
] < array
[3]);
57 for(int i
= 4; i
< 7; ++i
)
58 VERIFY(array
[3] < array
[i
]);
64 bool test
__attribute__((unused
)) = true;
65 int array
[] = {0, 6, 1, 5, 2, 4, 3};
66 Container
con(array
,array
+ 7);
67 nth_element(con
.begin(), con
.it(3), con
.end());
68 for(int i
= 0; i
< 3; ++i
)
69 VERIFY(array
[i
] < array
[3]);
70 for(int i
= 4; i
< 7; ++i
)
71 VERIFY(array
[3] < array
[i
]);