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 // <valarray> 10 11 // template<class T> class valarray; 12 13 // valarray operator+() const; 14 15 #include <valarray> 16 #include <cassert> 17 #include <cstddef> 18 19 #include "test_macros.h" 20 21 int main(int, char**) 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 = +v; 29 assert(v2.size() == v.size()); 30 for (std::size_t i = 0; i < v2.size(); ++i) 31 assert(v2[i] == +v[i]); 32 } 33 { 34 typedef double T; 35 T a[] = {1, 2.5, 3, 4.25, 5}; 36 const unsigned N = sizeof(a)/sizeof(a[0]); 37 std::valarray<T> v(a, N); 38 std::valarray<T> v2 = +v; 39 assert(v2.size() == v.size()); 40 for (std::size_t i = 0; i < v2.size(); ++i) 41 assert(v2[i] == +v[i]); 42 } 43 { 44 typedef std::valarray<double> T; 45 T a[] = {T(1), T(2), T(3), T(4), T(5)}; 46 const unsigned N = sizeof(a)/sizeof(a[0]); 47 std::valarray<T> v(a, N); 48 std::valarray<T> v2 = +v; 49 assert(v2.size() == v.size()); 50 for (unsigned i = 0; i < N; ++i) 51 { 52 assert(v2[i].size() == v[i].size()); 53 for (std::size_t j = 0; j < v[i].size(); ++j) 54 assert(v2[i][j] == +v[i][j]); 55 } 56 } 57 { 58 typedef double T; 59 T a[] = {1, 2.5, 3, 4.25, 5}; 60 const unsigned N = sizeof(a)/sizeof(a[0]); 61 std::valarray<T> v(a, N); 62 std::valarray<T> v2 = +(v + v); 63 assert(v2.size() == v.size()); 64 for (std::size_t i = 0; i < v2.size(); ++i) 65 assert(v2[i] == +2*v[i]); 66 } 67 68 return 0; 69 } 70