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bc: rewrite another for() loop

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function                                             old     new   delta
zbc_num_d                                            570     563      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2018-12-18 12:43:21 +01:00
parent e2e6ffd3c5
commit 71c82d1d8c
1 changed files with 7 additions and 3 deletions
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10
miscutils/bc.c
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@@ -1933,7 +1933,6 @@ static FAST_FUNC BC_STATUS zbc_num_d(BcNum *a, BcNum *b, BcNum *restrict c, size
BcDig *n, *p, q; BcDig *n, *p, q;
size_t len, end, i; size_t len, end, i;
BcNum cp; BcNum cp;
bool zero = true;
if (b->len == 0) if (b->len == 0)
RETURN_STATUS(bc_error("divide by zero")); RETURN_STATUS(bc_error("divide by zero"));
@@ -1961,8 +1960,13 @@ static FAST_FUNC BC_STATUS zbc_num_d(BcNum *a, BcNum *b, BcNum *restrict c, size
if (scale > cp.rdx) bc_num_extend(&cp, scale - cp.rdx); if (scale > cp.rdx) bc_num_extend(&cp, scale - cp.rdx);
if (b->rdx == b->len) { if (b->rdx == b->len) {
for (i = 0; zero && i < len; ++i) zero = !b->num[len - i - 1]; for (;;) {
len -= i - 1; if (len == 0) break;
len--;
if (b->num[len] != 0)
break;
}
len++;
} }
if (cp.cap == cp.len) bc_num_expand(&cp, cp.len + 1); if (cp.cap == cp.len) bc_num_expand(&cp, cp.len + 1);