🚀 Programming Example
Write C a program that uses a function show call by value mechanism.
Write C a program that uses a function show call by value mechanism.
#include <stdio.h>
int mul_by_10(int num); /* function prototype */
int main(void)
{
int result,num = 3;
printf("\n num = %d before function call.", num);
result = mul_by_10(num);
printf("\n result = %d after return from function", result);
printf("\n num = %d", num);
return 0;
}
/* function defi nition follows */
int mul_by_10(int num)
{
num *= 10;
return num;
}
num = 3 before function call.
result = 30 after return from function
num = 3
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.