#include <stdio.h>
int main() {
int a = 10;
int *p = &a;
printf("Value: %d\n", a);
printf("Address: %p\n", &a);
printf("Pointer stores: %p\n", p);
printf("Dereferenced value: %d\n", *p);
return 0;
}Coding works best on desktop or with an external keyboard.
Demonstrates basic pointer usage in C. Shows how a pointer stores the memory address of a variable and how to access the value using dereferencing.
#include <stdio.h>
int main() {
int a = 10;
int *p = &a;
printf("Value: %d\n", a);
printf("Address: %p\n", &a);
printf("Pointer stores: %p\n", p);
printf("Dereferenced value: %d\n", *p);
return 0;
}C is a general-purpose, procedural programming language that provides low-level access to memory, efficient performance, and a foundation for system and application software development.
Origin & Creator
Created by Dennis Ritchie at Bell Labs in 1972, originally for developing the UNIX operating system.
Industrial Note
C is essential in embedded systems, OS kernels, compilers, device drivers, and performance-critical applications where low-level memory control and speed are required.