In-Place String Reverse in C

Question

I am trying to learn the fundamentals of C, but I cannot figure out why this code doesn\'t work. The while loop in reverse() causes a bus error. I found almost identical code

Answer 1

The problem is that you're trying to reverse a constant literal string, which is read only. Change the declaration of a in main to char a[] = "12"; to make it a writable char array instead