op_subscript.runtime.pass.cpp (932B)
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 int state_; 21 static int next_; 22 23 public: 24 A() : state_(++next_) {} 25 int get() const { return state_; } 26 27 friend bool operator==(const A& x, int y) { return x.state_ == y; } 28 29 A& operator=(int i) { 30 state_ = i; 31 return *this; 32 } 33 }; 34 35 int A::next_ = 0; 36 37 int main() { 38 std::unique_ptr<A[]> p(new A[3]); 39 assert(p[0] == 1); 40 assert(p[1] == 2); 41 assert(p[2] == 3); 42 p[0] = 3; 43 p[1] = 2; 44 p[2] = 1; 45 assert(p[0] == 3); 46 assert(p[1] == 2); 47 assert(p[2] == 1); 48 }