1 // Copyright (C) 2005-2019 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 // 25.3.1.4 [lib.partial.sort.copy]
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::random_access_iterator_wrapper;
26 using __gnu_test::input_iterator_wrapper;
27 using std::partial_sort_copy;
28
29 typedef test_container<int, random_access_iterator_wrapper> Rcontainer;
30 typedef test_container<int, input_iterator_wrapper> Icontainer;
31
32 void
test1()33 test1()
34 {
35 int array[]={2,1,0};
36 Rcontainer rcon1(array, array);
37 Rcontainer rcon2(array, array + 2);
38 Icontainer icon1(array, array);
39 Icontainer icon2(array, array + 2);
40 partial_sort_copy(icon1.begin(), icon1.end(), rcon1.begin(), rcon1.end());
41 partial_sort_copy(icon1.begin(), icon1.end(), rcon2.begin(), rcon2.end());
42 partial_sort_copy(icon2.begin(), icon2.end(), rcon1.begin(), rcon1.end());
43 partial_sort_copy(icon2.begin(), icon2.end(), rcon2.begin(), rcon2.end());
44 }
45
46 void
test2()47 test2()
48 {
49 int array1[] = {4, 3, 2, 1, 0};
50 int array2[5];
51 Icontainer icon(array1, array1 + 5);
52 Rcontainer rcon(array2, array2 + 5);
53 partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
54 VERIFY(array2[0] == 0 && array2[1] == 1 && array2[2] == 2 &&
55 array2[3] == 3 && array2[4] == 4);
56 }
57
58 void
test3()59 test3()
60 {
61 int array1[] = {4, 0, 1, 3, 2};
62 int array2[5];
63 Icontainer icon(array1, array1 + 5);
64 Rcontainer rcon(array2, array2 + 2);
65 partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
66 VERIFY(array2[0] == 0 && array2[1] == 1);
67 }
68
69 void
test4()70 test4()
71 {
72 int array1[] = {4, 1, 3, 2, 0};
73 int array2[20];
74 Icontainer icon(array1, array1 + 5);
75 Rcontainer rcon(array2, array2 + 20);
76 partial_sort_copy(icon.begin(), icon.end(), rcon.begin(), rcon.end());
77 VERIFY(array2[0] == 0 && array2[1] == 1 && array2[2] == 2 &&
78 array2[3] == 3 && array2[4] == 4);
79 }
80
81 int
main()82 main()
83 {
84 test1();
85 test2();
86 test3();
87 test4();
88 }
89