pointer_throw.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 Y> explicit shared_ptr(Y* p);
13
14#include <memory>
15#include <new>
16#include <cstdlib>
17#include <cassert>
18
19struct A
20{
21    static int count;
22
23    A() {++count;}
24    A(const A&) {++count;}
25    ~A() {--count;}
26};
27
28int A::count = 0;
29
30bool throw_next = false;
31
32void* operator new(std::size_t s) throw(std::bad_alloc)
33{
34    if (throw_next)
35        throw std::bad_alloc();
36    return std::malloc(s);
37}
38
39void  operator delete(void* p) throw()
40{
41    std::free(p);
42}
43
44int main()
45{
46    {
47    A* ptr = new A;
48    throw_next = true;
49    assert(A::count == 1);
50    try
51    {
52        std::shared_ptr<A> p(ptr);
53        assert(false);
54    }
55    catch (std::bad_alloc&)
56    {
57        assert(A::count == 0);
58    }
59    }
60}
61