[reactos] 01/01: [SHELL32] Fix 2 compiler warnings for the rls-cfg 'unused variable' (#6539)

[Joachim Henze]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=a08b83a90ba494dfe62b8b...

commit a08b83a90ba494dfe62b8bf618e548c4926666ea
Author:     Joachim Henze [e-mail]
AuthorDate: Mon Feb 26 13:42:13 2024 +0100
Commit:     GitHub [e-mail]
CommitDate: Mon Feb 26 13:42:13 2024 +0100

[SHELL32] Fix 2 compiler warnings for the rls-cfg 'unused variable' (#6539)

I noticed it on releases/0.4.10 with the RosBEWin2.1.6 GCC4.7.2 *rls* configuration:

C:/0410rls/reactos/dll/win32/shell32/dialogs/filetypes.cpp: In function 'BOOL FileTypesDlg_InsertToLV(HWND, LPCWSTR, INT, LPCWSTR)':
    C:/0410rls/reactos/dll/win32/shell32/dialogs/filetypes.cpp:663:9: warning: variable 'iLargeImage' set but not used [-Wunused-but-set-variable]
    C:/0410rls/reactos/dll/win32/shell32/dialogs/filetypes.cpp: In function 'BOOL EditTypeDlg_UpdateEntryIcon(HWND, PEDITTYPE_DIALOG, LPCWSTR, INT)':
    C:/0410rls/reactos/dll/win32/shell32/dialogs/filetypes.cpp:1040:9: warning: unused variable 'iLargeImage' [-Wunused-variable]

But I do assume, that MSVC compilers would also complain about that in *rls* cfg.

Please notice that before 0.4.10-dev-202-g 698cbc6184722f29389ccd75ca96d88d6cd4b010 which did splitup and restructure the code
    this function was placed within the file folder_options.cpp and was named
    InsertFileType(HWND hDlgCtrl, WCHAR * szName, PINT iItem, WCHAR * szFile)
    and not yet within file_types.cpp with the new name
    FileTypesDlg_InsertToLV(HWND hListView, LPCWSTR szName, INT iItem, LPCWSTR szFile)
    Back then it did not have the iLargeImage variable yet, and it also didn't warn upon rls-cfg-compilation.
    Therefore 0.4.10-dev-202-g 698cbc6184722f29389ccd75ca96d88d6cd4b010 from (#582) is indeed the *guilty revision* (2018-06-06).
    It was done in the very first commit of that PR https://github.com/reactos/reactos/pull/582/commits/2fe0eab7216425f6b963e55f...
    It's bad practice to move and refactor/extend code in functionality within the very same commit, as it makes reviewing the changes much harder.

That assert never fired for the last 6 years, therefore it would have been okay also to strip it together with the variable, but using DBG_UNREFERENCED_LOCAL_VARIABLE(iLargeImage); allows to keep the assert for master.
---
 dll/win32/shell32/dialogs/filetypes.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dll/win32/shell32/dialogs/filetypes.cpp b/dll/win32/shell32/dialogs/filetypes.cpp
index ad394c8b1d3..2c245d717ba 100644
--- a/dll/win32/shell32/dialogs/filetypes.cpp
+++ b/dll/win32/shell32/dialogs/filetypes.cpp
@@ -666,6 +666,7 @@ FileTypesDlg_InsertToLV(HWND hListView, LPCWSTR szName, INT iItem, LPCWSTR szFil
         iLargeImage = ImageList_AddIcon(himlLarge, Entry->hIconLarge);
         iSmallImage = ImageList_AddIcon(himlSmall, Entry->hIconSmall);
         ASSERT(iLargeImage == iSmallImage);
+        DBG_UNREFERENCED_LOCAL_VARIABLE(iLargeImage);
     }

// Do not add excluded entries
@@ -1041,6 +1042,7 @@ EditTypeDlg_UpdateEntryIcon(HWND hwndDlg, PEDITTYPE_DIALOG pEditType,
     INT iLargeImage = ImageList_AddIcon(himlLarge, pEntry->hIconLarge);
     INT iSmallImage = ImageList_AddIcon(himlSmall, pEntry->hIconSmall);
     ASSERT(iLargeImage == iSmallImage);
+    DBG_UNREFERENCED_LOCAL_VARIABLE(iLargeImage);

INT iItem = ListView_GetNextItem(hListView, -1, LVNI_SELECTED);
     if (iItem != -1)