[vlc-devel] [PATCH 3/3] qt4: Add a 'virtual vs Q_DECL_OVERRIDE' section

Uwe L. Korn uwelk at xhochy.com
Fri Aug 15 12:58:08 CEST 2014

This should explain when to use the virtual keyword or the
Q_DECL_OVERRIDE macros on virtual function declarations.
 modules/gui/qt4/HACKING | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/gui/qt4/HACKING b/modules/gui/qt4/HACKING
index bb642ca..c58a476 100644
--- a/modules/gui/qt4/HACKING
+++ b/modules/gui/qt4/HACKING
@@ -43,6 +43,14 @@ So if your dialog is a dialog you are used to keep during a playing of a video,
 QVLCFrame: extended panel, messages...
 QVLCDialog: preferences, open...
+** virtual vs Q_DECL_OVERRIDE **
+Only mark functions with the virtual keyword if this is the initial virtual
+declaration. Functions that override a virtual function should have the
+Q_DECL_OVERRIDE macro appended (which expands to the override identifier
+when compiled with Qt5 and C++11). This is a visual indicator to distinguish
+virtual declarations from overriding implementations and will include a
+compile-time check in C++11 language mode.
 ** HIG for Qt **
 We tend to use GNOME/KDE specs over Vista ones for capitalizations:
 We use Header for:

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