C++ delete - It deletes my objects but I can still access the data?

Question

I have written a simple, working tetris game with each block as an instance of a class singleblock.

class SingleBlock
{
    public:
    SingleBlock(int, int)         


        

Answer 1

Although it's possible that your runtime doesn't report this error, using a proper error-checking runtime such as Valgrind will alert you to the use of memory after it has been freed.

I recommend that if you write code with new/delete and raw pointers (rather than std::make_shared() and similar), that you exercise your unit tests under Valgrind to at least have a chance of spotting such errors.