Visual C++ 2010 std::set find broken

I'm changing over from Visual Studio 2008 -> 2010 and I've come across a weird bug in my code when evaluating a find on a std::set of pointers.

I know that this version brings about a change where set::iterator has the same type as set::const_iterator to bring about some compatability with the standard. But I can't figure out why this section of code which previously worked now causes a crash?

void checkStop(Stop* stop)
{
    set<Stop*>                      m_mustFindStops;
    if (m_mustFindStops.find(stop) != m_mustFindStops.end()) // this line crashes for some reason??
    {
         // do some stuff
    }
}

PS m_mustFindStops is empty when it crashes.

EDIT: Thanks for the quick replies... I can't get it to reproduce with a simple case either - it's probably not a problem with the set its self. I t开发者_如何学Pythonhink that heap corruption may be a culprit - I just wish I knew why changing compilers would suddenly cause corruption for the same code and same input data.

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The only thing I can think of is that you have multiple threads, and m_mustfindStops is in fact a member or global variable and not a local to this function. There is no way the code above can cause problems, if correct and taken in isolation.

If you have multiple threads, then read access concurrent with write access will cause random errors - even if the container looks empty, it might not have been when the find call started.

Another possibility is that some other code has corrupted the heap, in which case however any of your code that uses heap memory could malfunction. With that in mind, if it's always this logic that breaks, my bet would be on a threading issue.

btw - there is absolutely nothing wrong with std::set in Visual C++ v10 - your code must have a bug.