Thread: Benefits of putting ++ after a variable

what the Benefits of putting ++ after a variable. I have tested it but give same result. Look at my both program's

Code:

#include <stdio.h>int main(void)
{
    int a = 5;
    
    printf("Value of a is %d \n",a);
    
    return 0;
}

Value of a is 5

Code:

#include <stdio.h>int main(void)
{
    int a = 5;
    
    printf("Value of a is %d \n",a++);
    
    return 0;
}

Value of a is 5

Postfix ++ has a specific side-effect. Have you tried printing its value again?

The idea is that post-fix increment returns the value before the increment as an intermediate result. It's called postfix because the value is fixed after using the variable.

For example.

Code:

a = 0;
if (a++ > 0)
   printf("The if was true. a=%d\n", a);

printf("a is greater than 0 (a=%d)\n", a);

The behavior of post-fix in this code explains the output, nothing else will. a++ > 0 is not true because a started at 0, and 0 was the intermediate result. However, a was still incremented to 1.

If you write a statement like a++; it makes no difference how you increment. Choosing between post-fix or prefix is only important if you have some reason to use a particular value of a variable.