What causes a SIGABRT fault?

Question

Could you please tell me what could possibly cause a SIGABRT fault in C++?

Answer 1

This usually happens when libraries encounter internal error, so they call abort(), because they cant continue. This might happen when you overwrite one of it's data structures (the one which belongs to the function from libc for example). So this might be e.g. libc calling because you did overwrite something. And the application must then terminate because it's impossible to continue or handle it, which is called failed assertion.