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 // <memory> 11 12 // unique_ptr 13 14 // test op[](size_t) 15 16 #include <memory> 17 #include <cassert> 18 19 class A 20 { 21 int state_; 22 static int next_; 23 public: 24 A() : state_(++next_) {} 25 int get() const {return state_;} 26 27 friend bool operator==(const A& x, int y) 28 {return x.state_ == y;} 29 30 A& operator=(int i) {state_ = i; return *this;} 31 }; 32 33 int A::next_ = 0; 34 35 int main() 36 { 37 std::unique_ptr<A> p(new A[3]); 38 assert(p[0] == 1); 39 assert(p[1] == 2); 40 assert(p[2] == 3); 41 p[0] = 3; 42 p[1] = 2; 43 p[2] = 1; 44 assert(p[0] == 3); 45 assert(p[1] == 2); 46 assert(p[2] == 1); 47 } 48
