1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <valarray>
10
11 // template<class T> class valarray;
12
13 // mask_array<value_type> operator[](const valarray<bool>& vb);
14
15 #include <valarray>
16 #include <cassert>
17
18 #include "test_macros.h"
19
main(int,char **)20 int main(int, char**)
21 {
22 {
23 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
24 const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
25 bool b[N1] = {true, false, false, true, true, false,
26 false, true, false, false, false, true};
27 std::valarray<int> v1(a1, N1);
28 std::valarray<bool> vb(b, N1);
29 std::valarray<int> v2(5);
30 v2 = v1[vb];
31 assert(v2.size() == 5);
32 assert(v2[ 0] == 0);
33 assert(v2[ 1] == 3);
34 assert(v2[ 2] == 4);
35 assert(v2[ 3] == 7);
36 assert(v2[ 4] == 11);
37 }
38 {
39 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
40 const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
41 bool b[N1] = {true, false, false, true, true, false,
42 false, true, false, false, false, true};
43 std::valarray<int> v1(a1, N1);
44 std::valarray<bool> vb(b, N1);
45 std::valarray<int> v2(5);
46 v2 = (v1 + 0)[vb];
47 assert(v2.size() == 5);
48 assert(v2[ 0] == 0);
49 assert(v2[ 1] == 3);
50 assert(v2[ 2] == 4);
51 assert(v2[ 3] == 7);
52 assert(v2[ 4] == 11);
53 }
54 return 0;
55 }
56