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 operator=(const valarray<value_type>& v) const;
15
16#include <valarray>
17#include <cassert>
18
19int main()
20{
21    int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
22    const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
23    int a2[] = {1, 2, 3, 4, 5};
24    const std::size_t N2 = sizeof(a2)/sizeof(a2[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<int> v2(a2, N2);
29    assert(N2 == std::count(b, b+N1, true));
30    std::valarray<bool> vb(b, N1);
31    v1[vb] = v2;
32    assert(v1.size() == 16);
33    assert(v1[ 0] ==  1);
34    assert(v1[ 1] ==  1);
35    assert(v1[ 2] ==  2);
36    assert(v1[ 3] ==  2);
37    assert(v1[ 4] ==  3);
38    assert(v1[ 5] ==  5);
39    assert(v1[ 6] ==  6);
40    assert(v1[ 7] ==  4);
41    assert(v1[ 8] ==  8);
42    assert(v1[ 9] ==  9);
43    assert(v1[10] == 10);
44    assert(v1[11] ==  5);
45    assert(v1[12] == 12);
46    assert(v1[13] == 13);
47    assert(v1[14] == 14);
48    assert(v1[15] == 15);
49}
50