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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 valarray;
// mask_array<value_type> operator[](const valarray<bool>& vb);
#include <valarray>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
{
int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
bool b[N1] = {true, false, false, true, true, false,
false, true, false, false, false, true};
std::valarray<int> v1(a1, N1);
std::valarray<bool> vb(b, N1);
std::valarray<int> v2(5);
v2 = v1[vb];
assert(v2.size() == 5);
assert(v2[ 0] == 0);
assert(v2[ 1] == 3);
assert(v2[ 2] == 4);
assert(v2[ 3] == 7);
assert(v2[ 4] == 11);
}
{
int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
bool b[N1] = {true, false, false, true, true, false,
false, true, false, false, false, true};
std::valarray<int> v1(a1, N1);
std::valarray<bool> vb(b, N1);
std::valarray<int> v2(5);
v2 = (v1 + 0)[vb];
assert(v2.size() == 5);
assert(v2[ 0] == 0);
assert(v2[ 1] == 3);
assert(v2[ 2] == 4);
assert(v2[ 3] == 7);
assert(v2[ 4] == 11);
}
return 0;
}
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