CS 456 - Systems Programming Spring 2024

Displaying ./code/jan18/print.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) { 

	int num1 = 10;
	printf("%d\n", num1); //prints num1

	int *ptr = (int *) malloc(sizeof(int));
	*ptr = 20;
	printf("%p\n", ptr); //prints the address pointed to by the pointer
	printf("%p\n", &ptr); /*prints the address of pointer -- extremely useful
	when dealing with double pointers*/
	printf("%d\n", *ptr); //prints the integer content of ptr

	char *str = (char *) malloc(256 * sizeof(char));
	strcpy(str, "Hello there!");
	printf("%p\n", str); // print the address in the heap
	printf("%s\n", str);
	return 0;



}