diff options
Diffstat (limited to 'libtommath/bn_mp_radix_size.c')
| -rw-r--r-- | libtommath/bn_mp_radix_size.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/libtommath/bn_mp_radix_size.c b/libtommath/bn_mp_radix_size.c index 6d7f912..b96f487 100644 --- a/libtommath/bn_mp_radix_size.c +++ b/libtommath/bn_mp_radix_size.c @@ -3,11 +3,11 @@ /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ -/* returns size of ASCII reprensentation */ +/* returns size of ASCII representation */ mp_err mp_radix_size(const mp_int *a, int radix, int *size) { mp_err err; - int digs; + int digs; mp_int t; mp_digit d; @@ -25,7 +25,7 @@ mp_err mp_radix_size(const mp_int *a, int radix, int *size) /* special case for binary */ if (radix == 2) { - *size = mp_count_bits(a) + ((a->sign == MP_NEG) ? 1 : 0) + 1; + *size = (mp_count_bits(a) + ((a->sign == MP_NEG) ? 1 : 0) + 1); return MP_OKAY; } @@ -48,16 +48,18 @@ mp_err mp_radix_size(const mp_int *a, int radix, int *size) /* fetch out all of the digits */ while (!MP_IS_ZERO(&t)) { if ((err = mp_div_d(&t, (mp_digit)radix, &t, &d)) != MP_OKAY) { - mp_clear(&t); - return err; + goto LBL_ERR; } ++digs; } - mp_clear(&t); /* return digs + 1, the 1 is for the NULL byte that would be required. */ *size = digs + 1; - return MP_OKAY; + err = MP_OKAY; + +LBL_ERR: + mp_clear(&t); + return err; } #endif |