I was given this code snippet by a colleague (compiled with MSVC6). The problem is that the second reset() delete the MyClass instance. However when on_thread_exit() is called, a second attempt to delete the instance is made. I was given a diff for the fix, but I would like to know if someone has come across this as well.

-- Forwarded message

Schalk,

The following code demonstrates a bug in the thread module of Boost under MSVC when using thread specific storage:

#include <boost/thread/tss.hpp>
#include <iostream>

class MyClass
{
    public:
        MyClass() { std::cout << "Up " << this << std::endl; }
        ~MyClass() { std::cout << "Down " << this << std::endl; }
};

boost::thread_specific_ptr<MyClass> MyPtr;

int main()
{
    MyPtr.reset(new MyClass);
    MyPtr.reset();
    return 0;
}