seg fault with nested struct from pointer

I am having trouble accessing variables from a nested struct and pointer. When this program runs I get a seg fault without anything before it. It doesn't even print out what's up.
Can someone help me with these problems please?

Thank you.

Code:

#include <stdio.h>

struct s_struct_one {
  int variable_one;
};

struct s_struct_two {
  int variable_two;
  struct s_struct_one struct_one;
};

int main(int argc, char *argv[])
{
  struct s_struct_two struct_two;
  struct s_struct_two *struct_two1;
  struct s_struct_one struct_one;

printf("WHAT'S UP\n");

  printf("%d  ",struct_two.struct_one.variable_one = 20);
  printf("%d  ",struct_two.variable_two = 20);
  printf("%d\n",(*struct_two1).struct_one.variable_one = 20);

  return 0;
}

Your pointer doesn't actually point at anything specific. Just some random spot in memory. Get used to compiling with warnings on and it would have told you that.


Quzah.

omg
I did it again.

(--Wall ?)

Thanks for finding my stupid errors for me. Gah!

I typically use:

Code:

gcc -o outputfile cfile0.c ... cfileN.c -Wall -pedantic

Quzah.

Thanks.