68 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++0310 11// <valarray>12 13// template<class T> class valarray;14 15// valarray& operator=(valarray&& v);16 17#include <valarray>18#include <cassert>19#include <cstddef>20 21#include "test_macros.h"22 23int main(int, char**)24{25 {26 typedef int T;27 T a[] = {1, 2, 3, 4, 5};28 const unsigned N = sizeof(a)/sizeof(a[0]);29 std::valarray<T> v(a, N);30 std::valarray<T> v2;31 v2 = std::move(v);32 assert(v2.size() == N);33 assert(v.size() == 0);34 for (std::size_t i = 0; i < v2.size(); ++i)35 assert(v2[i] == a[i]);36 }37 {38 typedef double T;39 T a[] = {1, 2.5, 3, 4.25, 5};40 const unsigned N = sizeof(a)/sizeof(a[0]);41 std::valarray<T> v(a, N);42 std::valarray<T> v2;43 v2 = std::move(v);44 assert(v2.size() == N);45 assert(v.size() == 0);46 for (std::size_t i = 0; i < v2.size(); ++i)47 assert(v2[i] == a[i]);48 }49 {50 typedef std::valarray<double> T;51 T a[] = {T(1), T(2), T(3), T(4), T(5)};52 const unsigned N = sizeof(a)/sizeof(a[0]);53 std::valarray<T> v(a, N);54 std::valarray<T> v2(a, N-2);55 v2 = std::move(v);56 assert(v2.size() == N);57 assert(v.size() == 0);58 for (unsigned i = 0; i < N; ++i)59 {60 assert(v2[i].size() == a[i].size());61 for (std::size_t j = 0; j < a[i].size(); ++j)62 assert(v2[i][j] == a[i][j]);63 }64 }65 66 return 0;67}68