Programming Example
Function in C Programming Language
Function in C Programming Language
#include <stdio.h>
/* function declaration */
int add(int num1, int num2);
int main () {
/* local variable definition */
int a = 100;
int b = 200;
int ret;
/* calling a function to get add */
ret = add(a, b);
printf( "value is : %d\n", ret );
return 0;
}
/* function returning the add between two numbers */
int add(int num1, int num2) {
/* local variable declaration */
int result;
result = num1+num2;
return result;
}value is : 300
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First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.