diff options
Diffstat (limited to 'libtommath/bn_mp_copy.c')
| -rw-r--r-- | libtommath/bn_mp_copy.c | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/libtommath/bn_mp_copy.c b/libtommath/bn_mp_copy.c index 51e0239..141dd0e 100644 --- a/libtommath/bn_mp_copy.c +++ b/libtommath/bn_mp_copy.c @@ -1,21 +1,13 @@ #include "tommath_private.h" #ifdef BN_MP_COPY_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 - */ +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ /* copy, b = a */ -int mp_copy(const mp_int *a, mp_int *b) +mp_err mp_copy(const mp_int *a, mp_int *b) { - int res, n; + int n; + mp_err err; /* if dst == src do nothing */ if (a == b) { @@ -24,8 +16,8 @@ int mp_copy(const mp_int *a, mp_int *b) /* grow dest */ if (b->alloc < a->used) { - if ((res = mp_grow(b, a->used)) != MP_OKAY) { - return res; + if ((err = mp_grow(b, a->used)) != MP_OKAY) { + return err; } } @@ -47,9 +39,7 @@ int mp_copy(const mp_int *a, mp_int *b) } /* clear high digits */ - for (; n < b->used; n++) { - *tmpb++ = 0; - } + MP_ZERO_DIGITS(tmpb, b->used - n); } /* copy used count and sign */ @@ -58,7 +48,3 @@ int mp_copy(const mp_int *a, mp_int *b) return MP_OKAY; } #endif - -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */ |