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i completely new to the world of c programming. i was reading the chapter of operators and expression. i got confused with increment and decrement operators. as......
#include<stdio.h>
#include<conio.h>
void main()
{
int a,y;
a=3;
y=++a + ++a + ++a;
printf("y=%d",y);
}
as i think it should give me the output
y=15 ( because ........4 + 5 + 6=15)
but it gives me 18
why? please explain it giving more examples.
*sobs into hands*
Quzah.
Go to the Search function and search the boards for the key words "order" and "evaluation" and browse a few of the results that pop up. There should be many hits that address this issue.
It's undefined -- anything can happen when you change a variable two times within one statement. Don't do that.
If you have any more questions about this, PM Mister C.
You fight the flood with buckets. We need a dam. Preferably the one the old board had...Quote:
Originally Posted by quzah
> why? please explain it giving more examples.
Well an example of someone who "didn't get it" is here
http://cboard.cprogramming.com/showt...ght=evaluation
Oh, and while you're at it
http://cboard.cprogramming.com/showthread.php?t=25765