1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <valarray>
11
12 // template<class T> class valarray;
13
14 // void swap(valarray& v);
15
16 #include <valarray>
17 #include <cassert>
18 #include <cstddef>
19
main()20 int main()
21 {
22 {
23 typedef int T;
24 T a1[] = {1, 2, 3, 4, 5};
25 T a2[] = {6, 7, 8, 9, 10, 11, 12};
26 const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
27 const unsigned N2 = sizeof(a2)/sizeof(a2[0]);
28 std::valarray<T> v1(a1, N1);
29 std::valarray<T> v2(a2, N2);
30 std::valarray<T> v1_save = v1;
31 std::valarray<T> v2_save = v2;
32 v1.swap(v2);
33 assert(v1.size() == v2_save.size());
34 for (std::size_t i = 0; i < v1.size(); ++i)
35 assert(v1[i] == v2_save[i]);
36 assert(v2.size() == v1_save.size());
37 for (std::size_t i = 0; i < v2.size(); ++i)
38 assert(v2[i] == v1_save[i]);
39 }
40 {
41 typedef int T;
42 T a1[] = {1, 2, 3, 4, 5};
43 const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
44 std::valarray<T> v1(a1, N1);
45 std::valarray<T> v2;
46 std::valarray<T> v1_save = v1;
47 std::valarray<T> v2_save = v2;
48 v1.swap(v2);
49 assert(v1.size() == v2_save.size());
50 for (std::size_t i = 0; i < v1.size(); ++i)
51 assert(v1[i] == v2_save[i]);
52 assert(v2.size() == v1_save.size());
53 for (std::size_t i = 0; i < v2.size(); ++i)
54 assert(v2[i] == v1_save[i]);
55 }
56 {
57 typedef int T;
58 T a2[] = {6, 7, 8, 9, 10, 11, 12};
59 const unsigned N2 = sizeof(a2)/sizeof(a2[0]);
60 std::valarray<T> v1;
61 std::valarray<T> v2(a2, N2);
62 std::valarray<T> v1_save = v1;
63 std::valarray<T> v2_save = v2;
64 v1.swap(v2);
65 assert(v1.size() == v2_save.size());
66 for (std::size_t i = 0; i < v1.size(); ++i)
67 assert(v1[i] == v2_save[i]);
68 assert(v2.size() == v1_save.size());
69 for (std::size_t i = 0; i < v2.size(); ++i)
70 assert(v2[i] == v1_save[i]);
71 }
72 {
73 typedef int T;
74 std::valarray<T> v1;
75 std::valarray<T> v2;
76 std::valarray<T> v1_save = v1;
77 std::valarray<T> v2_save = v2;
78 v1.swap(v2);
79 assert(v1.size() == v2_save.size());
80 for (std::size_t i = 0; i < v1.size(); ++i)
81 assert(v1[i] == v2_save[i]);
82 assert(v2.size() == v1_save.size());
83 for (std::size_t i = 0; i < v2.size(); ++i)
84 assert(v2[i] == v1_save[i]);
85 }
86 }
87