What is exactly a pointer in C?
What is the significance of a NULL pointer?
A pointer in C is a variable that holds an address as its value. Usually, when accessing a pointer variable's value you are more interested in the value at the address the variable holds rather than the address itself. For example, consider the following two variable declarations:
The first creates a variable "x" that holds integer values. The second creates a variable "p" that holds ...
This solution explores the role of pointers in C, in the context of computer science.