[reactos] 01/01: [SHELL32] Fix sorting on size for big files CORE-17205

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=679c95597ca0a83c7779c2...

commit 679c95597ca0a83c7779c288af96cce6c41c96ae
Author:     Mark Jansen [e-mail]
AuthorDate: Mon Aug 17 18:17:24 2020 +0200
Commit:     Mark Jansen [e-mail]
CommitDate: Mon Aug 17 18:17:24 2020 +0200

[SHELL32] Fix sorting on size for big files
    CORE-17205
---
 dll/win32/shell32/folders/CFSFolder.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dll/win32/shell32/folders/CFSFolder.cpp b/dll/win32/shell32/folders/CFSFolder.cpp
index 918ba8f5ff2..9aa8281daa4 100644
--- a/dll/win32/shell32/folders/CFSFolder.cpp
+++ b/dll/win32/shell32/folders/CFSFolder.cpp
@@ -968,7 +968,12 @@ HRESULT WINAPI CFSFolder::CompareIDs(LPARAM lParam,
             result = wcsicmp(pExtension1, pExtension2); 
             break;
         case 3: /* Size */
-            result = pData1->u.file.dwFileSize - pData2->u.file.dwFileSize;
+            if (pData1->u.file.dwFileSize > pData2->u.file.dwFileSize)
+                result = 1;
+            else if (pData1->u.file.dwFileSize < pData2->u.file.dwFileSize)
+                result = -1;
+            else
+                result = 0;
             break;
         case 4: /* Modified */
             result = pData1->u.file.uFileDate - pData2->u.file.uFileDate;