Beginner programming

I'm trying to write a loop, but there are two major problems. The 0 sentinel never works, and after one time through, it says:

Segmentation Fault (core dumped)

I don't even know what that means. :confused: Please go easy on me b/c this a first for me.

Code:

---

printf("\n\nEnter ID, 0 to exit");
while(ID != 0);
scanf("%d",&ID);
{
  blah
  blah
  blah
printf("\n\nEnter ID, 0 to exit");
scanf("%d", ID
}

---

Well post the code you actually tried.
The code you posted
- does not compile
- the ; at the end of the while is really, really bad.

Your 2nd scanf is missing an &

Please post your code in its entirety. That code won't even compile. One thing I do notice is that you have a semi-colon at the end of your while() statement which is probably not what you want.

Code:

---

while(ID != 0);

---

Your code execution will never pass that line, because of the semicolon after the while declaration. The correct form of a while loop would look something like this:

Code:

---

int i = 0;
while(i < 10)
{
  printf("i = %d\n",i);
  i = i + 1;
}

---

Alright, thanks. I got rid of the semicolon , added the & at the end,and switched the while and scanf statements. Now it loops till I enter the 0. I really appreciate the help. And next time I'll try to post the whole code.

Thanks again.