conterm/libc/runevsnprint.c

25 lines
372 B
C

#include <u.h>
#include <libc.h>
#include "fmtdef.h"
int
runevsnprint(Rune *buf, int len, char *fmt, va_list args)
{
Fmt f;
if(len <= 0)
return -1;
f.runes = 1;
f.start = buf;
f.to = buf;
f.stop = buf + len - 1;
f.flush = 0;
f.farg = nil;
f.nfmt = 0;
VA_COPY(f.args,args);
dofmt(&f, fmt);
VA_END(f.args);
*(Rune*)f.to = '\0';
return (Rune*)f.to - buf;
}