diff options
Diffstat (limited to 'libtommath/bn_mp_div_2d.c')
| -rw-r--r-- | libtommath/bn_mp_div_2d.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/libtommath/bn_mp_div_2d.c b/libtommath/bn_mp_div_2d.c index 5b9fb48..635d374 100644 --- a/libtommath/bn_mp_div_2d.c +++ b/libtommath/bn_mp_div_2d.c @@ -20,8 +20,6 @@ int mp_div_2d (mp_int * a, int b, mp_int * c, mp_int * d) { mp_digit D, r, rr; int x, res; - mp_int t; - /* if the shift count is <= 0 then we do no work */ if (b <= 0) { @@ -32,24 +30,19 @@ int mp_div_2d (mp_int * a, int b, mp_int * c, mp_int * d) return res; } - if ((res = mp_init (&t)) != MP_OKAY) { + /* copy */ + if ((res = mp_copy (a, c)) != MP_OKAY) { return res; } + /* 'a' should not be used after here - it might be the same as d */ /* get the remainder */ if (d != NULL) { - if ((res = mp_mod_2d (a, b, &t)) != MP_OKAY) { - mp_clear (&t); + if ((res = mp_mod_2d (a, b, d)) != MP_OKAY) { return res; } } - /* copy */ - if ((res = mp_copy (a, c)) != MP_OKAY) { - mp_clear (&t); - return res; - } - /* shift by as many digits in the bit count */ if (b >= (int)DIGIT_BIT) { mp_rshd (c, b / DIGIT_BIT); @@ -84,14 +77,10 @@ int mp_div_2d (mp_int * a, int b, mp_int * c, mp_int * d) } } mp_clamp (c); - if (d != NULL) { - mp_exch (&t, d); - } - mp_clear (&t); return MP_OKAY; } #endif -/* $Source$ */ -/* $Revision$ */ -/* $Date$ */ +/* ref: $Format:%D$ */ +/* git commit: $Format:%H$ */ +/* commit time: $Format:%ai$ */ |