cxx/test/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_throw.pass.cpp
2010-05-11 21:36:01 +00:00

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C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <memory>
// template<class Y> explicit shared_ptr(Y* p);
#include <memory>
#include <new>
#include <cstdlib>
#include <cassert>
struct A
{
static int count;
A() {++count;}
A(const A&) {++count;}
~A() {--count;}
};
int A::count = 0;
bool throw_next = false;
void* operator new(std::size_t s) throw(std::bad_alloc)
{
if (throw_next)
throw std::bad_alloc();
return std::malloc(s);
}
void operator delete(void* p) throw()
{
std::free(p);
}
int main()
{
{
A* ptr = new A;
throw_next = true;
assert(A::count == 1);
try
{
std::shared_ptr<A> p(ptr);
assert(false);
}
catch (std::bad_alloc&)
{
assert(A::count == 0);
}
}
}