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mdbx: refine SEARCH_IMPL macro.

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Change-Id: I975e480c047b88e0200aaf889334e8b83ab760ad
This commit is contained in:
Leonid Yuriev 2020-02-03 17:10:18 +03:00
parent 0714c07e28
commit 8214d674be
1 changed files with 15 additions and 11 deletions
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26
src/elements/core.c
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@ -2493,13 +2493,13 @@ static int lcklist_detach_locked(MDBX_env *env) {
TYPE_LIST *const begin = first, *const end = begin + length; \ TYPE_LIST *const begin = first, *const end = begin + length; \
\ \
while (length > 3) { \ while (length > 3) { \
const unsigned half = length >> 1; \ const unsigned whole = length; \
TYPE_LIST *const middle = first + half; \ length >>= 1; \
TYPE_LIST *const middle = first + length; \
if (CMP(*middle, item)) { \ if (CMP(*middle, item)) { \
first = middle + 1; \ first = middle + 1; \
length -= half + 1; \ length = whole - length - 1; \
} else \ } \
length = half; \
} \ } \
\ \
switch (length) { \ switch (length) { \
@ -2507,17 +2507,21 @@ static int lcklist_detach_locked(MDBX_env *env) {
if (!CMP(*first, item)) \ if (!CMP(*first, item)) \
break; \ break; \
++first; \ ++first; \
/* fall through */ \ __fallthrough /* fall through */; \
__fallthrough; \
case 2: \ case 2: \
if (!CMP(*first, item)) \ if (!CMP(*first, item)) \
break; \ break; \
++first; \ ++first; \
/* fall through */ \ __fallthrough /* fall through */; \
__fallthrough; \
case 1: \ case 1: \
if (CMP(*first, item)) \ if (!CMP(*first, item)) \
++first; \ break; \
++first; \
__fallthrough /* fall through */; \
case 0: \
break; \
default: \
__unreachable(); \
} \ } \
\ \
if (mdbx_audit_enabled()) { \ if (mdbx_audit_enabled()) { \