From 4113e1f2cd2f45a95bcb0920bf2e3ee75b906281 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Tue, 18 Dec 2018 00:39:24 +0100 Subject: bc: rewrite bc_num_compare() to be readable function old new delta bc_num_compare 59 51 -8 Signed-off-by: Denys Vlasenko --- miscutils/bc.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'miscutils/bc.c') diff --git a/miscutils/bc.c b/miscutils/bc.c index e5ad0ed86..eaab6cee6 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -1475,10 +1475,20 @@ static void bc_num_subArrays(BcDig *restrict a, BcDig *restrict b, static ssize_t bc_num_compare(BcDig *restrict a, BcDig *restrict b, size_t len) { - size_t i; - int c = 0; - for (i = len - 1; i < len && !(c = a[i] - b[i]); --i); - return BC_NUM_NEG(i + 1, c < 0); + size_t i = len; + for (;;) { + int c; + if (i == 0) + return 0; + i--; + c = a[i] - b[i]; + if (c != 0) { + i++; + if (c < 0) + return -i; + return i; + } + } } static ssize_t bc_num_cmp(BcNum *a, BcNum *b) -- cgit v1.2.3