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Drop write only assignments

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This commit is contained in:
Love Hornquist Astrand
2009-08-20 20:13:08 -07:00
parent 0c112865b4
commit 3021868ebb
1 changed files with 6 additions and 4 deletions
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10
lib/hcrypto/imath/imath.c
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@@ -553,16 +553,17 @@ mp_result mp_int_neg(mp_int a, mp_int c)
mp_result mp_int_add(mp_int a, mp_int b, mp_int c) mp_result mp_int_add(mp_int a, mp_int b, mp_int c)
{ {
mp_size ua, ub, uc, max; mp_size ua, ub, max;
CHECK(a != NULL && b != NULL && c != NULL); CHECK(a != NULL && b != NULL && c != NULL);
ua = MP_USED(a); ub = MP_USED(b); uc = MP_USED(c); ua = MP_USED(a); ub = MP_USED(b);
max = MAX(ua, ub); max = MAX(ua, ub);
if(MP_SIGN(a) == MP_SIGN(b)) { if(MP_SIGN(a) == MP_SIGN(b)) {
/* Same sign -- add magnitudes, preserve sign of addends */ /* Same sign -- add magnitudes, preserve sign of addends */
mp_digit carry; mp_digit carry;
mp_size uc;
if(!s_pad(c, max)) if(!s_pad(c, max))
return MP_MEMORY; return MP_MEMORY;
@@ -640,12 +641,13 @@ mp_result mp_int_sub(mp_int a, mp_int b, mp_int c)
CHECK(a != NULL && b != NULL && c != NULL); CHECK(a != NULL && b != NULL && c != NULL);
ua = MP_USED(a); ub = MP_USED(b); uc = MP_USED(c); ua = MP_USED(a); ub = MP_USED(b);
max = MAX(ua, ub); max = MAX(ua, ub);
if(MP_SIGN(a) != MP_SIGN(b)) { if(MP_SIGN(a) != MP_SIGN(b)) {
/* Different signs -- add magnitudes and keep sign of a */ /* Different signs -- add magnitudes and keep sign of a */
mp_digit carry; mp_digit carry;
mp_size uc;
if(!s_pad(c, max)) if(!s_pad(c, max))
return MP_MEMORY; return MP_MEMORY;
@@ -2016,7 +2018,7 @@ mp_result mp_int_read_binary(mp_int z, unsigned char *buf, int len)
mp_result mp_int_binary_len(mp_int z) mp_result mp_int_binary_len(mp_int z)
{ {
mp_result res = mp_int_count_bits(z); mp_result res = mp_int_count_bits(z);
int bytes = mp_int_unsigned_len(z); int bytes;
if(res <= 0) if(res <= 0)
return res; return res;