[gtk] tree models: Use standard padding

[Matthias Clasen <matthiasc src gnome org>]

commit dd5839dfe82ec025a76188292c130e3803ec24b2
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 28 22:23:08 2019 -0400

    tree models: Use standard padding

 gtk/gtkliststore.h       | 7 ++-----
 gtk/gtktreemodelfilter.h | 8 +++-----
 gtk/gtktreemodelsort.h   | 7 ++-----
 gtk/gtktreestore.h       | 7 ++-----
 4 files changed, 9 insertions(+), 20 deletions(-)
---
diff --git a/gtk/gtkliststore.h b/gtk/gtkliststore.h
index 1f4e3d3922..6a9ae2bb7c 100644
--- a/gtk/gtkliststore.h
+++ b/gtk/gtkliststore.h
@@ -53,11 +53,8 @@ struct _GtkListStoreClass
 {
   GObjectClass parent_class;
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+  gpointer padding[8];
 };
 
 
diff --git a/gtk/gtktreemodelfilter.h b/gtk/gtktreemodelfilter.h
index df2e37aeff..f49005f99b 100644
--- a/gtk/gtktreemodelfilter.h
+++ b/gtk/gtktreemodelfilter.h
@@ -97,11 +97,9 @@ struct _GtkTreeModelFilterClass
                    GValue             *value,
                    gint                column);
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+
+  gpointer padding[8];
 };
 
 /* base */
diff --git a/gtk/gtktreemodelsort.h b/gtk/gtktreemodelsort.h
index 7d09ca703f..568372efb3 100644
--- a/gtk/gtktreemodelsort.h
+++ b/gtk/gtktreemodelsort.h
@@ -51,11 +51,8 @@ struct _GtkTreeModelSortClass
 {
   GObjectClass parent_class;
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /* < private > */
+  gpointer padding[8];
 };
 
 
diff --git a/gtk/gtktreestore.h b/gtk/gtktreestore.h
index 584376d4df..649dc2154b 100644
--- a/gtk/gtktreestore.h
+++ b/gtk/gtktreestore.h
@@ -53,11 +53,8 @@ struct _GtkTreeStoreClass
 {
   GObjectClass parent_class;
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+  gpointer padding[8];
 };