[linux-audio-dev] A C++ question

Hi I know it's not a C++ specific list, but maybe someone can shed some light on this. I have encountered this problem with all C++ compilers and I don't know exactly what it is. Sometimes I might make a class, and inherit it from another. Or, the class just has virtual functions in it ( I am planning to derive others from it). In any case, I am trying to access a virtual function in an instantiated instance at runtime, and when I do, the program crashes. I try to see if it is reaching the function (printf("Hi!") from inside or something), but it doesn't. It is like the vtable is being destroyed somehow. So, is it possible to smash the vtable of a class? I can't imagine all compilers have the same quirk, because I have seen this problem on half a dozen compilers. Usually it is in classes where I am doing heavy memory management. My guess is that the vtable can be corrupted somehow by a smash.