tommath/bn_mp_init_multi.c

57 lines
1.6 KiB
C
Raw Normal View History

#include <tommath_private.h>
2004-10-29 18:07:18 -04:00
#ifdef BN_MP_INIT_MULTI_C
2003-05-17 08:33:54 -04:00
/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
2003-08-04 21:24:44 -04:00
* LibTomMath is a library that provides multiple-precision
2003-05-17 08:33:54 -04:00
* integer arithmetic as well as number theoretic functionality.
*
2003-08-04 21:24:44 -04:00
* The library was designed directly after the MPI library by
2003-05-17 08:33:54 -04:00
* Michael Fromberger but has been written from scratch with
* additional optimizations in place.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tstdenis82@gmail.com, http://libtom.org
2003-05-17 08:33:54 -04:00
*/
#include <stdarg.h>
2017-08-29 23:51:11 -04:00
int mp_init_multi(mp_int *mp, ...)
2003-05-17 08:33:54 -04:00
{
2017-08-30 13:11:35 -04:00
mp_err res = MP_OKAY; /* Assume ok until proven otherwise */
int n = 0; /* Number of ok inits */
mp_int *cur_arg = mp;
va_list args;
2003-05-17 08:33:54 -04:00
2017-08-30 13:11:35 -04:00
va_start(args, mp); /* init args to next argument from caller */
while (cur_arg != NULL) {
if (mp_init(cur_arg) != MP_OKAY) {
/* Oops - error! Back-track and mp_clear what we already
succeeded in init-ing, then return error.
*/
va_list clean_args;
2017-08-29 23:51:11 -04:00
2017-08-30 13:11:35 -04:00
/* now start cleaning up */
cur_arg = mp;
va_start(clean_args, mp);
while (n-- != 0) {
mp_clear(cur_arg);
cur_arg = va_arg(clean_args, mp_int *);
}
va_end(clean_args);
res = MP_MEM;
break;
}
n++;
cur_arg = va_arg(args, mp_int *);
}
va_end(args);
return res; /* Assumed ok, if error flagged above. */
2003-08-29 10:06:56 -04:00
}
2004-10-29 18:07:18 -04:00
#endif
2005-08-01 12:37:28 -04:00
2017-08-28 10:27:26 -04:00
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */