libtommath/bn_mp_set_long.c
Steffen Jaeckel cb1eb16116 run make astyle
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2019-04-04 07:58:07 +02:00

39 lines
1006 B
C

#include "tommath_private.h"
#ifdef BN_MP_SET_LONG_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
* LibTomMath is a library that provides multiple-precision
* integer arithmetic as well as number theoretic functionality.
*
* The library was designed directly after the MPI library by
* Michael Fromberger but has been written from scratch with
* additional optimizations in place.
*
* SPDX-License-Identifier: Unlicense
*/
/* set a platform dependent unsigned long int */
#if (ULONG_MAX != 0xFFFFFFFFUL) || (DIGIT_BIT < 32)
MP_SET_XLONG(mp_set_long, unsigned long)
#else
int mp_set_long(mp_int *a, unsigned long b)
{
int x = 0;
int res = mp_grow(a, (CHAR_BIT * sizeof(unsigned long) + DIGIT_BIT - 1) / DIGIT_BIT);
if (res == MP_OKAY) {
mp_zero(a);
if (b) {
a->dp[x++] = (mp_digit)b;
}
a->used = x;
}
return res;
}
#endif
#endif
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */