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70 lines
2.0 KiB
C++
70 lines
2.0 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 mask_array
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// void mask_array& operator=(const mask_array& ma) const;
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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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{
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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 b1[N1] = {true, false, false, true, true, false,
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false, true, false, false, false, true};
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int a2[] = {-1, -2, -3, -4, -5, -6, -7, -8};
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const std::size_t N2 = sizeof(a2)/sizeof(a2[0]);
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bool b2[N2] = {true, false, true, true,
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false, false, true, true};
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std::valarray<int> v1(a1, N1);
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const std::valarray<int> v2(a2, N2);
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std::valarray<bool> vb1(b1, N1);
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std::valarray<bool> vb2(b2, N2);
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v1[vb1] = v2[vb2];
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assert(v1.size() == 16);
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assert(v1[ 0] == -1);
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assert(v1[ 1] == 1);
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assert(v1[ 2] == 2);
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assert(v1[ 3] == -3);
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assert(v1[ 4] == -4);
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assert(v1[ 5] == 5);
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assert(v1[ 6] == 6);
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assert(v1[ 7] == -7);
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assert(v1[ 8] == 8);
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assert(v1[ 9] == 9);
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assert(v1[10] == 10);
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assert(v1[11] == -8);
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assert(v1[12] == 12);
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assert(v1[13] == 13);
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assert(v1[14] == 14);
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assert(v1[15] == 15);
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}
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// Test return value of assignment
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{
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int a1[] = {0, 1, 2};
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int a2[] = {3, 4, 5};
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bool b1[] = {true, false, true};
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std::valarray<int> v1(a1, 3);
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std::valarray<int> v2(a2, 3);
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std::valarray<bool> const vb1(b1, 3);
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std::mask_array<int> m1 = v1[vb1];
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std::mask_array<int> const m2 = v2[vb1];
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std::mask_array<int> const & r = (m1 = m2);
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assert(&r == &m1);
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}
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return 0;
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}
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