diff options
Diffstat (limited to 'libtommath/bn_mp_complement.c')
| -rw-r--r-- | libtommath/bn_mp_complement.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libtommath/bn_mp_complement.c b/libtommath/bn_mp_complement.c new file mode 100644 index 0000000..fef1423 --- /dev/null +++ b/libtommath/bn_mp_complement.c @@ -0,0 +1,12 @@ +#include "tommath_private.h" +#ifdef BN_MP_COMPLEMENT_C +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ + +/* b = ~a */ +mp_err mp_complement(const mp_int *a, mp_int *b) +{ + mp_err err = mp_neg(a, b); + return (err == MP_OKAY) ? mp_sub_d(b, 1uL, b) : err; +} +#endif |