66 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(const valarray<value_type>& v);16 17#include <valarray>18#include <utility>19#include <cassert>20#include <cstddef>21 22#include "test_macros.h"23 24int main(int, char**)25{26 {27 typedef int T;28 T a[] = {1, 2, 3, 4, 5};29 const unsigned N = sizeof(a)/sizeof(a[0]);30 std::valarray<T> v(a, N);31 std::valarray<T> 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 = std::move(v);43 assert(v2.size() == N);44 assert(v.size() == 0);45 for (std::size_t i = 0; i < v2.size(); ++i)46 assert(v2[i] == a[i]);47 }48 {49 typedef std::valarray<double> T;50 T a[] = {T(1), T(2), T(3), T(4), T(5)};51 const unsigned N = sizeof(a)/sizeof(a[0]);52 std::valarray<T> v(a, N);53 std::valarray<T> v2 = std::move(v);54 assert(v2.size() == N);55 assert(v.size() == 0);56 for (unsigned i = 0; i < N; ++i)57 {58 assert(v2[i].size() == a[i].size());59 for (std::size_t j = 0; j < v2[i].size(); ++j)60 assert(v2[i][j] == a[i][j]);61 }62 }63 64 return 0;65}66