调用std :: vector :: clear时c ++崩溃

Question

I have a std::vector<Pointer> where pointer is very similar to Boost's intrusive ptr. There are a couple of differences but the system worked well so for months and I have any doubts that it has any flaws. The vector contains a list of ~30 interfaces and each element has an implementation to rather complex objects. The crash happens as follows:

v.clear() // -> CRASH

Strangely the crash doesn't happen if clear the vector in any other way; for example the following code will NOT crash.

while(v.size()) v.pop_back();
or
while(v.size()) v.erase(v.begin());

It also doesn't crash if I compile with the flags "/RTCsu" and "/RTCc". If I debug the release of all the items happens correctly, it will even exit the clear function successfully, however if eminently after the clear I do "step into" it will go again in the clear function and will crash upon calling the function "iterator end()"

How is this happening ? What part of the memory should I check for corruption, since the debugger and Application verifier failed to give me any relevant information? Has anyone stumbled upon this issue before?

Answer 1

Is that smart pointer has copy constructor and assignment operator? STL containers store copies of contained items, if there is something wrong with your smart pointer, that might have caused the problem that you described.