[reactos] 06/09: [PSDK] Remove a buggy GNU-specific "PACKED" attribute in KEY_EVENT_RECORD structure declaration. (#3619) CORE-17545

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=db089c517edb75d560760e...

commit db089c517edb75d560760ec1ff8dac35cd0a2137
Author:     Hermès Bélusca-Maïto [e-mail]
AuthorDate: Wed Apr 21 19:03:00 2021 +0200
Commit:     Hermès Bélusca-Maïto [e-mail]
CommitDate: Wed May 5 17:24:12 2021 +0200

[PSDK] Remove a buggy GNU-specific "PACKED" attribute in KEY_EVENT_RECORD structure declaration. (#3619)
    CORE-17545

No other public header out there (in MS PSDK, MinGW, Wine, etc...) does have
    this hack (that was introduced back in the days in r15141 / commit 01df92bc).

Add static assert on KEY_EVENT_RECORD's uChar member to ensure it's properly aligned.

May fix Clang warning:

win32ss/user/winsrv/consrv/lineinput.c:457:62: warning: taking address of packed member 'uChar' of class or structure '_KEY_EVENT_RECORD' may result in an unaligned pointer value [-Waddress-of-packed-member]
                LineInputEdit(Console, (Overstrike ? 1 : 0), 1, &KeyEvent->uChar.UnicodeChar);
                                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
    and whatnot...
---
 sdk/include/psdk/wincon.h | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sdk/include/psdk/wincon.h b/sdk/include/psdk/wincon.h
index 6145b93cf1c..bb6e1ed8dc5 100644
--- a/sdk/include/psdk/wincon.h
+++ b/sdk/include/psdk/wincon.h
@@ -246,12 +246,9 @@ typedef struct _KEY_EVENT_RECORD {
         CHAR  AsciiChar;
     } uChar;
     DWORD dwControlKeyState;
-}
-#ifdef __GNUC__
-/* gcc's alignment is not what win32 expects */
-PACKED
-#endif
-KEY_EVENT_RECORD, *PKEY_EVENT_RECORD;
+} KEY_EVENT_RECORD, *PKEY_EVENT_RECORD;
+
+C_ASSERT(FIELD_OFFSET(KEY_EVENT_RECORD, uChar) == 0xA);

typedef struct _MOUSE_EVENT_RECORD {
     COORD dwMousePosition;