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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2018-12-18 12:43:21 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2018-12-18 12:43:21 +0100 |
| commit | 71c82d1d8ca0617290600050728feda906878115 (patch) | |
| tree | 5f5f3685b46ef986083daa2df033d003a33fbd3c | |
| parent | e2e6ffd3c5e229ef386ca22e467c6553e570c55a (diff) | |
| download | busybox-71c82d1d8ca0617290600050728feda906878115.tar.gz | |
bc: rewrite another for() loop
function old new delta
zbc_num_d 570 563 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | miscutils/bc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 6c63c1703..0cd8ba6b4 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -1933,7 +1933,6 @@ static FAST_FUNC BC_STATUS zbc_num_d(BcNum *a, BcNum *b, BcNum *restrict c, size BcDig *n, *p, q; size_t len, end, i; BcNum cp; - bool zero = true; if (b->len == 0) 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 (b->rdx == b->len) { - for (i = 0; zero && i < len; ++i) zero = !b->num[len - i - 1]; - len -= i - 1; + for (;;) { + if (len == 0) break; + len--; + if (b->num[len] != 0) + break; + } + len++; } if (cp.cap == cp.len) bc_num_expand(&cp, cp.len + 1); |