1 /* { dg-do compile } */ 2 3 char *a; 4 void fn1()5 fn1 () 6 { 7 char *p = a; 8 while (p && *p != '\0') 9 { 10 while (*p == '\t') 11 *p++ = '\0'; 12 if (*p != '\0') 13 p = 0; 14 } 15 } 16