uninitialized_fill.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
1//===----------------------------------------------------------------------===//
2//
3// ��������������������The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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
20struct 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
29int B::count_ = 0;
30
31int 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