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//===----------------------------------------------------------------------===//
//
// 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 mask_array;
// T __get(size_t i);
#include <valarray>
#include <cassert>
#include "test_macros.h"
int main(int, char**) {
unsigned input[] = {0, 1, 2, 3, 4};
const unsigned N = sizeof(input) / sizeof(input[0]);
std::valarray<unsigned> array(input, N);
{
std::mask_array<unsigned> result = array[std::valarray<bool>(true, N)];
for (unsigned i = 0; i < N; ++i)
assert(result.__get(i) == i);
}
{
std::valarray<bool> mask(false, N);
mask[1] = true;
mask[3] = true;
std::mask_array<unsigned> result = array[mask];
assert(result.__get(0) == 1);
assert(result.__get(1) == 3);
}
{
std::valarray<bool> mask(false, N);
mask[0] = true;
mask[4] = true;
std::mask_array<unsigned> result = array[mask];
assert(result.__get(0) == 0);
assert(result.__get(1) == 4);
}
return 0;
}
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