libcxx/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/equal_valarray_value.pass.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <valarray>

// template<class T> class valarray;

// template<class T>
//   valarray<bool>
//   operator==(const valarray<T>& x, const T& y);

#include <valarray>
#include <cassert>
#include <cstddef>

int main()
{
    {
        typedef int T;
        T a1[] = {1,  2,  3,  4,  0};
        bool a3[] = {false,  true,  false,  false,  false};
        const unsigned N = sizeof(a1)/sizeof(a1[0]);
        std::valarray<T> v1(a1, N);
        std::valarray<bool> v3 = v1 == 2;
        assert(v1.size() == v3.size());
        for (std::size_t i = 0; i < v1.size(); ++i)
            assert(v3[i] == a3[i]);
    }
}