/* File: weird1.c

   Running this simple program with global variables
   produces a very strange error.
*/

#include <stdio.h>
#include "genlib.h"
#include "simpio.h"
#include "strlib.h"

int strlen ;
string str ;

main() {
   int length ;

   printf ("Enter a string: ") ;
   str = GetLine() ;
   length = StringLength(str) ;
   printf ("The length of that string is: %d\n", length) ;
}
_________________________________________________________

retriever% cc201 weird1.c
retriever% 

retriever% a.out
Enter a string: hello world
Illegal instruction (core dumped)