Is it safe to delete every pointer in C++ as a pointer to an array? [duplicate]

Question

Is it safe to delete every pointer in C++ as a pointer to an array?

Will it be fine for me if I will always write delete [] ptr with no regard what ptr actually is - whether it is a pointer to a single object or an array of objects?

Answer 1

No, it won't be. Deleting something with delete [] that was not allocated with new [] produces undefined behaviour. And why would you want to? You allocated the memory, so you should know how to delete it. For further information, see http://en.cppreference.com/w/cpp/language/delete.