xref: /plan9-contrib/sys/src/ape/lib/fmt/fmtvprint.c (revision 53ff6c4dddeb19bd84c918cdd2542d7c51263329)
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 ANY
11  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13  */
14 #include <stdarg.h>
15 #include <string.h>
16 #include "utf.h"
17 #include "fmt.h"
18 #include "fmtdef.h"
19 
20 
21 /*
22  * format a string into the output buffer
23  * designed for formats which themselves call fmt
24  */
25 int
fmtvprint(Fmt * f,char * fmt,va_list args)26 fmtvprint(Fmt *f, char *fmt, va_list args)
27 {
28 	va_list va;
29 	int n;
30 
31 	va = f->args;
32 	f->args = args;
33 	n = dofmt(f, fmt);
34 	f->args = va;
35 	if(n >= 0)
36 		return 0;
37 	return n;
38 }
39 
40