runestrrchr.c (981B)
1 /* 2 * The authors of this software are Rob Pike and Ken Thompson. 3 * Copyright (c) 2002 by Lucent Technologies. 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose without fee is hereby granted, provided that this entire notice 6 * is included in all copies of any software which is or includes a copy 7 * or modification of this software and in all copies of the supporting 8 * documentation for such software. 9 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED 10 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE 11 * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY 12 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. 13 */ 14 #include "plan9.h" 15 #include "utf.h" 16 17 #include <stdarg.h> 18 #include <string.h> 19 20 Rune* runestrrchr(Rune* s, Rune c) { 21 Rune* r; 22 23 if (c == 0) 24 return runestrchr(s, 0); 25 r = 0; 26 while ((s = runestrchr(s, c))) 27 r = s++; 28 return r; 29 }