Can a C++ std::list iterator move past the end? -

for(std::list<myclass *>::iterator = m_currentjobs.begin(); != m_currentjobs.end(); ++it) {     request = *it;     if(request != null)     {         printf(request->status());     }      delete request;     m_currentjobs.erase(it); } 

is possible iterator point garbage data beyond end of list?

you make iterator invalid erasing it.

you may change loop to:

std::list<myclass *>::iterator = m_currentjobs.begin(); while(it != m_currentjobs.end()) {     // ...     = m_currentjobs.erase(it); } 

and answer question: yes possible have invalid iterator (not limited iterators past end). using these involves undefined behavior.