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 // <utility> 11 12 // template<ValueType T, size_t N> 13 // requires Swappable<T> 14 // void 15 // swap(T (&a)[N], T (&b)[N]); 16 17 #include <utility> 18 #include <cassert> 19 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 20 #include <memory> 21 #endif 22 23 void 24 test() 25 { 26 int i[3] = {1, 2, 3}; 27 int j[3] = {4, 5, 6}; 28 std::swap(i, j); 29 assert(i[0] == 4); 30 assert(i[1] == 5); 31 assert(i[2] == 6); 32 assert(j[0] == 1); 33 assert(j[1] == 2); 34 assert(j[2] == 3); 35 } 36 37 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 38 39 void 40 test1() 41 { 42 std::unique_ptr<int> i[3]; 43 for (int k = 0; k < 3; ++k) 44 i[k].reset(new int(k+1)); 45 std::unique_ptr<int> j[3]; 46 for (int k = 0; k < 3; ++k) 47 j[k].reset(new int(k+4)); 48 std::swap(i, j); 49 assert(*i[0] == 4); 50 assert(*i[1] == 5); 51 assert(*i[2] == 6); 52 assert(*j[0] == 1); 53 assert(*j[1] == 2); 54 assert(*j[2] == 3); 55 } 56 57 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 58 59 int main() 60 { 61 test(); 62 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 63 test1(); 64 #endif 65 } 66
