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 // void swap(valarray& v); 15 16 #include <valarray> 17 #include <cassert> 18 19 int main() 20 { 21 { 22 typedef int T; 23 T a1[] = {1, 2, 3, 4, 5}; 24 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 25 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 26 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 27 std::valarray<T> v1(a1, N1); 28 std::valarray<T> v2(a2, N2); 29 std::valarray<T> v1_save = v1; 30 std::valarray<T> v2_save = v2; 31 v1.swap(v2); 32 assert(v1.size() == v2_save.size()); 33 for (int i = 0; i < v1.size(); ++i) 34 assert(v1[i] == v2_save[i]); 35 assert(v2.size() == v1_save.size()); 36 for (int i = 0; i < v2.size(); ++i) 37 assert(v2[i] == v1_save[i]); 38 } 39 { 40 typedef int T; 41 T a1[] = {1, 2, 3, 4, 5}; 42 const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 43 const unsigned N2 = 0; 44 std::valarray<T> v1(a1, N1); 45 std::valarray<T> v2; 46 std::valarray<T> v1_save = v1; 47 std::valarray<T> v2_save = v2; 48 v1.swap(v2); 49 assert(v1.size() == v2_save.size()); 50 for (int i = 0; i < v1.size(); ++i) 51 assert(v1[i] == v2_save[i]); 52 assert(v2.size() == v1_save.size()); 53 for (int i = 0; i < v2.size(); ++i) 54 assert(v2[i] == v1_save[i]); 55 } 56 { 57 typedef int T; 58 T a2[] = {6, 7, 8, 9, 10, 11, 12}; 59 const unsigned N1 = 0; 60 const unsigned N2 = sizeof(a2)/sizeof(a2[0]); 61 std::valarray<T> v1; 62 std::valarray<T> v2(a2, N2); 63 std::valarray<T> v1_save = v1; 64 std::valarray<T> v2_save = v2; 65 v1.swap(v2); 66 assert(v1.size() == v2_save.size()); 67 for (int i = 0; i < v1.size(); ++i) 68 assert(v1[i] == v2_save[i]); 69 assert(v2.size() == v1_save.size()); 70 for (int i = 0; i < v2.size(); ++i) 71 assert(v2[i] == v1_save[i]); 72 } 73 { 74 typedef int T; 75 const unsigned N1 = 0; 76 const unsigned N2 = 0; 77 std::valarray<T> v1; 78 std::valarray<T> v2; 79 std::valarray<T> v1_save = v1; 80 std::valarray<T> v2_save = v2; 81 v1.swap(v2); 82 assert(v1.size() == v2_save.size()); 83 for (int i = 0; i < v1.size(); ++i) 84 assert(v1[i] == v2_save[i]); 85 assert(v2.size() == v1_save.size()); 86 for (int i = 0; i < v2.size(); ++i) 87 assert(v2[i] == v1_save[i]); 88 } 89 } 90
