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// valarray(const mask_array<value_type>& ma);
14
15#include <valarray>
16#include <cassert>
17
18#include "test_macros.h"
19
20int main(int, char**)
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 b[N1] = {true, false, false, true, true, false,
25 false, true, false, false, false, true};
26 std::valarray<int> v1(a1, N1);
27 std::valarray<bool> vb(b, N1);
28 std::valarray<int> v2(v1[vb]);
29 assert(v2.size() == 5);
30 assert(v2[ 0] == 0);
31 assert(v2[ 1] == 3);
32 assert(v2[ 2] == 4);
33 assert(v2[ 3] == 7);
34 assert(v2[ 4] == 11);
35
36 return 0;
37}
38

source code of libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/mask_array.pass.cpp