xref: /aosp_15_r20/external/libutf/runestrecpy.c (revision e72f39528b91793251d8cc21b78f3f8706ae7c47)
1*e72f3952SAlexander Dorokhine /*
2*e72f3952SAlexander Dorokhine  * The authors of this software are Rob Pike and Ken Thompson.
3*e72f3952SAlexander Dorokhine  *              Copyright (c) 2002 by Lucent Technologies.
4*e72f3952SAlexander Dorokhine  * Permission to use, copy, modify, and distribute this software for any
5*e72f3952SAlexander Dorokhine  * purpose without fee is hereby granted, provided that this entire notice
6*e72f3952SAlexander Dorokhine  * is included in all copies of any software which is or includes a copy
7*e72f3952SAlexander Dorokhine  * or modification of this software and in all copies of the supporting
8*e72f3952SAlexander Dorokhine  * documentation for such software.
9*e72f3952SAlexander Dorokhine  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10*e72f3952SAlexander Dorokhine  * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
11*e72f3952SAlexander Dorokhine  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12*e72f3952SAlexander Dorokhine  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13*e72f3952SAlexander Dorokhine  */
14*e72f3952SAlexander Dorokhine #include <stdarg.h>
15*e72f3952SAlexander Dorokhine #include <string.h>
16*e72f3952SAlexander Dorokhine #include "utf.h"
17*e72f3952SAlexander Dorokhine #include "utfdef.h"
18*e72f3952SAlexander Dorokhine 
19*e72f3952SAlexander Dorokhine Rune*
runestrecpy(Rune * s1,Rune * es1,const Rune * s2)20*e72f3952SAlexander Dorokhine runestrecpy(Rune *s1, Rune *es1, const Rune *s2)
21*e72f3952SAlexander Dorokhine {
22*e72f3952SAlexander Dorokhine 	if(s1 >= es1)
23*e72f3952SAlexander Dorokhine 		return s1;
24*e72f3952SAlexander Dorokhine 
25*e72f3952SAlexander Dorokhine 	while((*s1++ = *s2++) != 0){
26*e72f3952SAlexander Dorokhine 		if(s1 == es1){
27*e72f3952SAlexander Dorokhine 			*--s1 = '\0';
28*e72f3952SAlexander Dorokhine 			break;
29*e72f3952SAlexander Dorokhine 		}
30*e72f3952SAlexander Dorokhine 	}
31*e72f3952SAlexander Dorokhine 	return s1;
32*e72f3952SAlexander Dorokhine }
33