user32: Fix wraparound check to avoid gcc optimization.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

user32: Fix wraparound check to avoid gcc optimization.
7507541a · Alexandre Julliard · e8fd1c73 · 7507541a
Commit 7507541a authored Nov 26, 2018 by Alexandre Julliard
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win.c dlls/user32/win.c +2 -2

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--- a/dlls/user32/win.c
+++ b/dlls/user32/win.c
@@ -1611,8 +1611,8 @@ HWND WIN_CreateWindowEx( CREATESTRUCTW *cs, LPCWSTR className, HINSTANCE module,
    if (cy < 0) cy = 0;
    SetRect( &rect, cs->x, cs->y, cs->x + cx, cs->y + cy );
    /* check for wraparound */
-    if (cs->x + cx < cs->x) rect.right = 0x7fffffff;
-    if (cs->y + cy < cs->y) rect.bottom = 0x7fffffff;
+    if (cs->x > 0x7fffffff - cx) rect.right = 0x7fffffff;
+    if (cs->y > 0x7fffffff - cy) rect.bottom = 0x7fffffff;
    if (!set_window_pos( hwnd, 0, SWP_NOZORDER | SWP_NOACTIVATE, &rect, &rect, NULL )) goto failed;

    /* send WM_NCCREATE */