Memory Allocation

Lecture 1 - Slide 29 : 34

Memory Allocation

Two functions for allocation of memory from the heap

A function for deallocation of the memory

From <stdlib.h>

Allocation functions
- malloc(size)
- calloc(number_of_objects, size_of_object)
- These functions return a null pointer in case of problems
Reallocation - resizing of allocated object
- realloc(ptr, newsize)
Deallocation
- free(ptr)

In C++ the new and delete functions are used instead of malloc, calloc and free

Dynamic allocation of persons and addresses