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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++98, c++03 10 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 int main() 22 { 23 { 24 typedef int T; 25 T a[] = {1, 2, 3, 4, 5}; 26 const unsigned N = sizeof(a)/sizeof(a[0]); 27 std::valarray<T> v(a, N); 28 std::valarray<T> v2; 29 v2 = std::move(v); 30 assert(v2.size() == N); 31 assert(v.size() == 0); 32 for (std::size_t i = 0; i < v2.size(); ++i) 33 assert(v2[i] == a[i]); 34 } 35 { 36 typedef double T; 37 T a[] = {1, 2.5, 3, 4.25, 5}; 38 const unsigned N = sizeof(a)/sizeof(a[0]); 39 std::valarray<T> v(a, N); 40 std::valarray<T> v2; 41 v2 = std::move(v); 42 assert(v2.size() == N); 43 assert(v.size() == 0); 44 for (std::size_t i = 0; i < v2.size(); ++i) 45 assert(v2[i] == a[i]); 46 } 47 { 48 typedef std::valarray<double> T; 49 T a[] = {T(1), T(2), T(3), T(4), T(5)}; 50 const unsigned N = sizeof(a)/sizeof(a[0]); 51 std::valarray<T> v(a, N); 52 std::valarray<T> v2(a, N-2); 53 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 < a[i].size(); ++j) 60 assert(v2[i][j] == a[i][j]); 61 } 62 } 63 } 64