/* Aufbau von Texten zur Laufzeit */
/* sstrcat2.c */
#include <stdio.h>
#include <string.h>

int main (int argc, char ** argv)
{
char puffer[128];
char * x;
strcpy (puffer,argv[0]);
/* puffer [strlen (puffer) -4] = '\0'; */
if ((x = strrchr (puffer,'.')) == NULL)
   strcat (puffer,".txt");
else
   strcpy (x,".txt");
printf ("\nZugeh”rige Textdatei: %s", puffer);
return 0;
}