xref: /llvm-project-15.0.7/libcxx/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.pass.cpp (revision 469d18c0)

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <valarray>

// template<class T> class valarray;

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

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

#include "test_macros.h"

int main(int, char**)
{
    {
        typedef int T;
        T a1[] = {1,  2,  0,  4, 10};
        T a2[] = {6,  7,  0,  2, 1};
        bool a3[] = {true,  true,  false,  false,  false};
        const unsigned N = 5;
        std::valarray<T> v1(a1, N);
        std::valarray<T> v2(a2, N);
        std::valarray<bool> v3 = v1 < v2;
        std::valarray<bool> v3a = +(v1 < v2);
        assert(v3.size() == N);
        assert(v3a.size() == N);
        for (std::size_t i = 0; i < N; ++i) {
            assert(v3[i] == a3[i]);
            assert(v3a[i] == a3[i]);
        }
    }

  return 0;
}