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 // test move 11 12 // UNSUPPORTED: c++98, c++03 13 14 #include <utility> 15 #include <cassert> 16 17 int copy_ctor = 0; 18 int move_ctor = 0; 19 20 class A 21 { 22 public: 23 24 A(const A&) {++copy_ctor;} 25 A& operator=(const A&); 26 27 A(A&&) {++move_ctor;} 28 A& operator=(A&&); 29 30 A() {} 31 }; 32 33 A source() {return A();} 34 const A csource() {return A();} 35 36 void test(A) {} 37 38 int main() 39 { 40 A a; 41 const A ca = A(); 42 43 assert(copy_ctor == 0); 44 assert(move_ctor == 0); 45 46 A a2 = a; 47 assert(copy_ctor == 1); 48 assert(move_ctor == 0); 49 50 A a3 = std::move(a); 51 assert(copy_ctor == 1); 52 assert(move_ctor == 1); 53 54 A a4 = ca; 55 assert(copy_ctor == 2); 56 assert(move_ctor == 1); 57 58 A a5 = std::move(ca); 59 assert(copy_ctor == 3); 60 assert(move_ctor == 1); 61 } 62
