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 // back_insert_iterator 13 14 // requires CopyConstructible<Cont::value_type> 15 // back_insert_iterator<Cont>& 16 // operator=(const Cont::value_type& value); 17 18 #include <iterator> 19 #include <vector> 20 #include <cassert> 21 22 template <class C> 23 void 24 test(C c) 25 { 26 const typename C::value_type v = typename C::value_type(); 27 std::back_insert_iterator<C> i(c); 28 i = v; 29 assert(c.back() == v); 30 } 31 32 class Copyable 33 { 34 int data_; 35 public: 36 Copyable() : data_(0) {} 37 ~Copyable() {data_ = -1;} 38 39 friend bool operator==(const Copyable& x, const Copyable& y) 40 {return x.data_ == y.data_;} 41 }; 42 43 int main() 44 { 45 test(std::vector<Copyable>()); 46 } 47
