C Pointer Functions: Purpose Explained

In C language, the purpose of a pointer function is to allow a function to accept or return a pointer as a parameter. Pointer functions can be used to manipulate the memory address pointed to within a function, enabling the function to modify the value of the input parameter or return a dynamically allocated memory address. Pointer functions provide greater flexibility in handling memory and data, enhancing the efficiency and performance of a program. By using pointer functions, dynamic memory allocation, operations on data structures like linked lists, and passing complex data structures between functions can be achieved.