1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <valarray> 11 12 // template<class T> class valarray; 13 14 // template<class T> 15 // void 16 // swap(valarray<T>& x, valarray<T>& y); 17 18 #include <valarray> 19 #include <cassert> 20 21 int main() 22 { 23 { 24 typedef int T; 25 T a1[] = {1, 2, 3, 4, 5}; 26 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 27 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 28 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 29 std::valarray<T> v1(a1, N1); 30 std::valarray<T> v2(a2, N2); 31 std::valarray<T> v1_save = v1; 32 std::valarray<T> v2_save = v2; 33 swap(v1, v2); 34 assert(v1.size() == v2_save.size()); 35 for (int i = 0; i < v1.size(); ++i) 36 assert(v1[i] == v2_save[i]); 37 assert(v2.size() == v1_save.size()); 38 for (int i = 0; i < v2.size(); ++i) 39 assert(v2[i] == v1_save[i]); 40 } 41 { 42 typedef int T; 43 T a1[] = {1, 2, 3, 4, 5}; 44 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 45 const unsigned N2 = 0; 46 std::valarray<T> v1(a1, N1); 47 std::valarray<T> v2; 48 std::valarray<T> v1_save = v1; 49 std::valarray<T> v2_save = v2; 50 swap(v1, v2); 51 assert(v1.size() == v2_save.size()); 52 for (int i = 0; i < v1.size(); ++i) 53 assert(v1[i] == v2_save[i]); 54 assert(v2.size() == v1_save.size()); 55 for (int i = 0; i < v2.size(); ++i) 56 assert(v2[i] == v1_save[i]); 57 } 58 { 59 typedef int T; 60 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 61 const unsigned N1 = 0; 62 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 63 std::valarray<T> v1; 64 std::valarray<T> v2(a2, N2); 65 std::valarray<T> v1_save = v1; 66 std::valarray<T> v2_save = v2; 67 swap(v1, v2); 68 assert(v1.size() == v2_save.size()); 69 for (int i = 0; i < v1.size(); ++i) 70 assert(v1[i] == v2_save[i]); 71 assert(v2.size() == v1_save.size()); 72 for (int i = 0; i < v2.size(); ++i) 73 assert(v2[i] == v1_save[i]); 74 } 75 { 76 typedef int T; 77 const unsigned N1 = 0; 78 const unsigned N2 = 0; 79 std::valarray<T> v1; 80 std::valarray<T> v2; 81 std::valarray<T> v1_save = v1; 82 std::valarray<T> v2_save = v2; 83 swap(v1, v2); 84 assert(v1.size() == v2_save.size()); 85 for (int i = 0; i < v1.size(); ++i) 86 assert(v1[i] == v2_save[i]); 87 assert(v2.size() == v1_save.size()); 88 for (int i = 0; i < v2.size(); ++i) 89 assert(v2[i] == v1_save[i]); 90 } 91 } 92
