Let us learn how to add two numbers using pointers in C programming using user-defined functions with an output.
The C program for addition of two pointers makes use of the de-reference operator, also known as the asterisk (*). The user-defined function used here makes use of the call by reference approach.
What is a Pointer?
A pointer is a variable which can be used to store the memory address of another variable which is of the same data-type.
Note: This program to add two integers using pointers in C programming is compiled with GNU GCC compiler with gEdit editor on Linux Ubuntu 14.10 operating system.
There are many other arithmetic operations that can be performed on pointers in C programming, and they’re enlisted below:
- Increment
- Decrement
- Subtraction
C Program To Add Two Numbers using Pointers and Functions
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | #include<stdio.h> int add(int *x, int *y); int main() { int num1, num2, res; printf("\nAdd First Number:\t"); scanf("%d", &num1); printf("\nAdd Second Number:\t"); scanf("%d", &num2); res = add(&num1, &num2); printf("\nAddition of Two Numbers: %d", res); printf("\n"); return 0; } int add(int *x, int *y) { int temp; temp = *x + *y; return temp; } |
Output
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