C Pointers Questions and Answers

The first declaration allocates memory for a pointer; the second allocates memory for 20 characters.....
A null pointer does not point to any object. NULL and 0 are interchangeable in pointer contexts.Usage of NULL should be considered a gentle reminder that a pointer....
A pointer to a function is a pointer that points to a function. A function pointer is a pointer that either has an indeterminate value, or has a null pointer value, or points to a function