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 // <iterator> 11 12 // move_iterator 13 14 // reference operator*() const; 15 16 #include <iterator> 17 #include <cassert> 18 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 19 #include <memory> 20 #endif 21 22 class A 23 { 24 int data_; 25 public: 26 A() : data_(1) {} 27 ~A() {data_ = -1;} 28 29 friend bool operator==(const A& x, const A& y) 30 {return x.data_ == y.data_;} 31 }; 32 33 template <class It> 34 void 35 test(It i, typename std::iterator_traits<It>::value_type x) 36 { 37 std::move_iterator<It> r(i); 38 assert(*r == x); 39 typename std::iterator_traits<It>::value_type x2 = *r; 40 assert(x2 == x); 41 } 42 43 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 44 45 struct do_nothing 46 { 47 void operator()(void*) const {} 48 }; 49 50 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 51 52 int main() 53 { 54 A a; 55 test(&a, A()); 56 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 57 int i; 58 std::unique_ptr<int, do_nothing> p(&i); 59 test(&p, std::unique_ptr<int, do_nothing>(&i)); 60 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 61 } 62
