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38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <valarray>
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// template<class T> class valarray;
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// valarray(const mask_array<value_type>& ma);
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#include <valarray>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
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const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
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bool b[N1] = {true, false, false, true, true, false,
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false, true, false, false, false, true};
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std::valarray<int> v1(a1, N1);
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std::valarray<bool> vb(b, N1);
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std::valarray<int> v2(v1[vb]);
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assert(v2.size() == 5);
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assert(v2[ 0] == 0);
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assert(v2[ 1] == 3);
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assert(v2[ 2] == 4);
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assert(v2[ 3] == 7);
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assert(v2[ 4] == 11);
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return 0;
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}
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