/* str/copyf.c - Copy formatted data into a string
* Copyright (C) 2005 Bruce Guenter <bruce@untroubled.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "str.h"
#include "fmt.h"
/** Copy formatted data using \c fmt_multi from a \c va_list */
int str_copyfv(str* s, const char* format, va_list ap)
{
unsigned length;
va_list ap2;
va_copy(ap2, ap);
length = fmt_multiv(0, format, ap2);
va_end(ap2);
if (!str_ready(s, length))
return 0;
fmt_multiv(s->s, format, ap);
s->s[s->len = length] = 0;
return 1;
}
/** Copy formatted data using \c fmt_multi from variable arguments */
int str_copyf(str* s, const char* format, ...)
{
int i;
va_list ap;
va_start(ap, format);
i = str_copyfv(s, format, ap);
va_end(ap);
return i;
}
#ifdef SELFTEST_MAIN
MAIN
{
static str s;
debugstrfn(str_copyf(&s, "d{bar}x", 10, 20), &s);
}
#endif
#ifdef SELFTEST_EXP
result=1 len=7 size=16 s=10bar14
#endif