/* impure.c -- test to see if stdin has any characters with ASCII code > 127
   Feature: misuse with any argument will be reported as not impure.
   RJBotting
   Started: 
	Wed Dec 20 08:40:24 PST 2006
	Based on char.c
*/
#include <stdio.h>

#define DEL 127

main(int argc, char *argv[])
{ int c; 
  if(1!=argc){
	fprintf(stderr,"Usage: impure <file\n");
            exit(1);
        }

  while( (c=getchar())!=EOF){
	if(c>DEL)
		exit(0);
  }/*while*/

  exit(2);
}