1 // Copyright (C) 2005-2021 Free Software Foundation, Inc.
2 //
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)
7 // any later version.
8
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.
13
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/>.
17
18 // 25.3.7 [lib.alg.min.max]
19
20 #include <algorithm>
21 #include <testsuite_hooks.h>
22 #include <testsuite_iterators.h>
23
24 using __gnu_test::test_container;
25 using __gnu_test::forward_iterator_wrapper;
26 using std::min_element;
27
28 typedef test_container<int, forward_iterator_wrapper> Container;
29
30 void
test1()31 test1()
32 {
33 // Note: The standard is unclear on what should happen in this case.
34 // This seems the only really sensible behaviour, and what is done.
35 int array[] = {0};
36 Container con(array, array);
37 VERIFY(min_element(con.begin(), con.end()).ptr == array);
38 }
39
40 void
test2()41 test2()
42 {
43 int array[] = {0};
44 Container con(array, array + 1);
45 VERIFY(min_element(con.begin(), con.end()).ptr == array);
46 }
47
48 void
test3()49 test3()
50 {
51 int array[] = {0, 3};
52 Container con(array, array + 2);
53 VERIFY(min_element(con.begin(), con.end()).ptr == array);
54 }
55
56 void
test4()57 test4()
58 {
59 int array[] = {6, 3, 0, 2, 6, 4, 0};
60 Container con(array, array + 7);
61 VERIFY(min_element(con.begin(), con.end()).ptr == array + 2);
62 }
63
main()64 int main()
65 {
66 test1();
67 test2();
68 test3();
69 test4();
70 }
71