Simple Program for Increment and Decrement Integer using Pointer in C

About this program

This is an example program in c pointer example programs. Read the concept first: C Pointers, then study the code and output below.

Declartion Syntax

(*pt)++; //Pointer Post Increment
++(*pt); //Pointer Pre Increment
(*pt)--; //Pointer Post Decrement
--(*pt); //Pointer Pre Decrement

Simple Program for Increment and Decrement Integer Using Pointer

/* Simple Program for Increment and Decrement Integer Using Pointer in C*/
/* Print Pointer Address Program,C Pointer Examples */

#include <stdio.h>

int main() {
  int a;
  int *pt;

  printf("Pointer Example Program : Increment and Decrement Integer\n");
  a = 10;
  pt = &a;

  (*pt)++; //Post Increment
  printf("\n[a  ]:Increment Value of A = %d", a);

  ++(*pt); //Pre Increment
  printf("\n[a  ]:Increment Value of A = %d", a);

  (*pt)--; //Post Decrement
  printf("\n[a  ]:Decrement Value of A = %d", a);

  --(*pt); //Pre Decrement
  printf("\n[a  ]:Decrement Value of A = %d", a);

  return 0;
}

Sample Output

Pointer Example Program : Increment and Decrement Integer

[a  ]:Increment Value of A = 11
[a  ]:Increment Value of A = 12
[a  ]:Decrement Value of A = 11
[a  ]:Decrement Value of A = 10

How It Works

This C program demonstrates Simple Program for Increment and Decrement Integer using Pointer. It first prepares the data it needs, then performs the core operation step by step, and finally prints the output shown in the Sample Output above.

1. Declare the variables that hold the program’s data.
2. Print the final result to the console so you can compare it with the sample output.

Try changing the input values and re-running the program to see how the output changes — this is the fastest way to understand how the logic behaves.

Related Pages

Learn the concept first, then study the code:

• C Programs — Browse all C Programs.
• C Pointers — Concept — pointers, addresses and dereferencing.
• Simple Pointer Example Program — More in c pointer example programs.
• Simple Program for Print address of Variable Using Pointer in C — More in c pointer example programs.