From 7ea1a4e0e84348fc6b7e3b3385980e40f6c1a83c Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Tue, 28 Jan 2020 01:47:50 +0300
Subject: [PATCH] mdbx: fix key_from_jsonInteger() for MSVC.

Change-Id: I3fc6a6da57707750cb2e8429bbaf10ff1de2dde2
---
 src/elements/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/elements/core.c b/src/elements/core.c
index 18b7d18d..78418c40 100644
--- a/src/elements/core.c
+++ b/src/elements/core.c
@@ -17808,14 +17808,14 @@ static __inline int clz64(uint64_t value) {
   unsigned long index;
 #if defined(_M_AMD64) || defined(_M_ARM64) || defined(_M_X64)
   _BitScanReverse64(&index, value);
-  return index;
+  return 63 - index;
 #else
   if (value > UINT32_MAX) {
     _BitScanReverse(&index, (uint32_t)(value >> 32));
-    return index;
+    return 31 - index;
   }
   _BitScanReverse(&index, (uint32_t)value);
-  return index + 32;
+  return 63 - index;
 #endif
 #endif /* MSVC */