diff options
Diffstat (limited to 'libtommath/bn_mp_get_int.c')
-rw-r--r-- | libtommath/bn_mp_get_int.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/libtommath/bn_mp_get_int.c b/libtommath/bn_mp_get_int.c deleted file mode 100644 index 049d05e..0000000 --- a/libtommath/bn_mp_get_int.c +++ /dev/null @@ -1,42 +0,0 @@ -#include "tommath_private.h" -#ifdef BN_MP_GET_INT_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 - */ - -/* get the lower 32-bits of an mp_int */ -unsigned long mp_get_int(const mp_int *a) -{ - int i; - mp_min_u32 res; - - if (a->used == 0) { - return 0; - } - - /* get number of digits of the lsb we have to read */ - i = MIN(a->used, ((((int)sizeof(unsigned long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1; - - /* get most significant digit of result */ - res = DIGIT(a, i); - - while (--i >= 0) { - res = (res << DIGIT_BIT) | DIGIT(a, i); - } - - /* force result to 32-bits always so it is consistent on non 32-bit platforms */ - return res & 0xFFFFFFFFUL; -} -#endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */ |