Thread: Wierd pointer problem

Code:

  1 #include <stdio.h>
  2
  3 main()
  4 {
  5     char *x;
  6     char *s;
  7     scanf("%s", s);
  8     x = "2352";
  9     printf("s: %s\n", s);
 10     printf("x: %s\n", x);
 11 }

Why do I get a segfault after I input the value of s?

Your help is appreciated.

*s is a new pointer, at the start. It's pointing to NULL, most likely, depending on your compiler.

Now you're assigning a char, to NULL - that's the infamous "NULL pointer assignment".

You can't do that.

Turbo C doesn't crash with your code, but can't print out the char, either, just gives the error. If I kept doing it, it would crash, of course.

So how would I go about doing what my code intends to do?

Give it something to point to, like you did with x.

There might be one more problem, but try that.