Dynamic Memory Allocation: Example Program

#include <stdio.h>
#include <stdlib.h> 
int main( )
{
	// Declare pointer variables
	int  *i ;
	float  *a ;	
	/* Allocate memory using malloc and store the starting 
	address of allocated memory in pointer variable*/
	i = (int*) malloc (sizeof(int));
    a = (float*) malloc (sizeof(float));
	// Declare employee structure
	struct emp
	{
		char name [20];
		int age;
		float sal;
	};
	// Declare structure pointer
	struct emp *e;
	e = (struct emp *) malloc (sizeof (struct emp));
}