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 mask_array
13
14 // void mask_array& operator=(const mask_array& ma) const;
15
16 #include <valarray>
17 #include <cassert>
18
main()19 int main()
20 {
21 {
22 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
23 const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
24 bool b1[N1] = {true, false, false, true, true, false,
25 false, true, false, false, false, true};
26 int a2[] = {-1, -2, -3, -4, -5, -6, -7, -8};
27 const std::size_t N2 = sizeof(a2)/sizeof(a2[0]);
28 bool b2[N2] = {true, false, true, true,
29 false, false, true, true};
30 std::valarray<int> v1(a1, N1);
31 const std::valarray<int> v2(a2, N2);
32 std::valarray<bool> vb1(b1, N1);
33 std::valarray<bool> vb2(b2, N2);
34 v1[vb1] = v2[vb2];
35 assert(v1.size() == 16);
36 assert(v1[ 0] == -1);
37 assert(v1[ 1] == 1);
38 assert(v1[ 2] == 2);
39 assert(v1[ 3] == -3);
40 assert(v1[ 4] == -4);
41 assert(v1[ 5] == 5);
42 assert(v1[ 6] == 6);
43 assert(v1[ 7] == -7);
44 assert(v1[ 8] == 8);
45 assert(v1[ 9] == 9);
46 assert(v1[10] == 10);
47 assert(v1[11] == -8);
48 assert(v1[12] == 12);
49 assert(v1[13] == 13);
50 assert(v1[14] == 14);
51 assert(v1[15] == 15);
52 }
53 // Test return value of assignment
54 {
55 int a1[] = {0, 1, 2};
56 int a2[] = {3, 4, 5};
57 bool b1[] = {true, false, true};
58 std::valarray<int> v1(a1, 3);
59 std::valarray<int> v2(a2, 3);
60 std::valarray<bool> const vb1(b1, 3);
61 std::mask_array<int> m1 = v1[vb1];
62 std::mask_array<int> const m2 = v2[vb1];
63 std::mask_array<int> const & r = (m1 = m2);
64 assert(&r == &m1);
65 }
66 }
67