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 // template <class ForwardIterator, class T> 13 // void 14 // uninitialized_fill(ForwardIterator first, ForwardIterator last, 15 // const T& x); 16 17 #include <memory> 18 #include <cassert> 19 20 struct B 21 { 22 static int count_; 23 int data_; 24 explicit B() : data_(1) {} 25 B(const B& b) {if (++count_ == 3) throw 1; data_ = b.data_;} 26 ~B() {data_ = 0;} 27 }; 28 29 int B::count_ = 0; 30 31 int main() 32 { 33 const int N = 5; 34 char pool[sizeof(B)*N] = {0}; 35 B* bp = (B*)pool; 36 try 37 { 38 std::uninitialized_fill(bp, bp+N, B()); 39 assert(false); 40 } 41 catch (...) 42 { 43 for (int i = 0; i < N; ++i) 44 assert(bp[i].data_ == 0); 45 } 46 B::count_ = 0; 47 std::uninitialized_fill(bp, bp+2, B()); 48 for (int i = 0; i < 2; ++i) 49 assert(bp[i].data_ == 1); 50 } 51
