gobject/gtype.h - third_party/glib - Git at Google

 /* GObject - GLib Type, Object, Parameter and Signal Library
  * Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General
  * Public License along with this library; if not, write to the
  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  * Boston, MA 02111-1307, USA.
  */
 #if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
 #error "Only <glib-object.h> can be included directly."
 #endif

 #ifndef __G_TYPE_H__
 #define __G_TYPE_H__

 #include        <glib.h>

 G_BEGIN_DECLS

 /* Basic Type Macros
  */
 #define G_TYPE_FUNDAMENTAL(type)	(g_type_fundamental (type))
 #define	G_TYPE_FUNDAMENTAL_MAX		(255 << G_TYPE_FUNDAMENTAL_SHIFT)

 /* Constant fundamental types,
  * introduced by g_type_init().
  */
 #define G_TYPE_INVALID			G_TYPE_MAKE_FUNDAMENTAL (0)
 #define G_TYPE_NONE			G_TYPE_MAKE_FUNDAMENTAL (1)
 #define G_TYPE_INTERFACE		G_TYPE_MAKE_FUNDAMENTAL (2)
 #define G_TYPE_CHAR			G_TYPE_MAKE_FUNDAMENTAL (3)
 #define G_TYPE_UCHAR			G_TYPE_MAKE_FUNDAMENTAL (4)
 #define G_TYPE_BOOLEAN			G_TYPE_MAKE_FUNDAMENTAL (5)
 #define G_TYPE_INT			G_TYPE_MAKE_FUNDAMENTAL (6)
 #define G_TYPE_UINT			G_TYPE_MAKE_FUNDAMENTAL (7)
 #define G_TYPE_LONG			G_TYPE_MAKE_FUNDAMENTAL (8)
 #define G_TYPE_ULONG			G_TYPE_MAKE_FUNDAMENTAL (9)
 #define G_TYPE_INT64			G_TYPE_MAKE_FUNDAMENTAL (10)
 #define G_TYPE_UINT64			G_TYPE_MAKE_FUNDAMENTAL (11)
 #define G_TYPE_ENUM			G_TYPE_MAKE_FUNDAMENTAL (12)
 #define G_TYPE_FLAGS			G_TYPE_MAKE_FUNDAMENTAL (13)
 #define G_TYPE_FLOAT			G_TYPE_MAKE_FUNDAMENTAL (14)
 #define G_TYPE_DOUBLE			G_TYPE_MAKE_FUNDAMENTAL (15)
 #define G_TYPE_STRING			G_TYPE_MAKE_FUNDAMENTAL (16)
 #define G_TYPE_POINTER			G_TYPE_MAKE_FUNDAMENTAL (17)
 #define G_TYPE_BOXED			G_TYPE_MAKE_FUNDAMENTAL (18)
 #define G_TYPE_PARAM			G_TYPE_MAKE_FUNDAMENTAL (19)
 #define G_TYPE_OBJECT			G_TYPE_MAKE_FUNDAMENTAL (20)


 /* Reserved fundamental type numbers to create new fundamental
  * type IDs with G_TYPE_MAKE_FUNDAMENTAL().
  * Send email to gtk-devel-list@redhat.com for reservations.
  */
 #define	G_TYPE_FUNDAMENTAL_SHIFT	(2)
 #define	G_TYPE_MAKE_FUNDAMENTAL(x)	((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
 #define G_TYPE_RESERVED_GLIB_FIRST	(21)
 #define G_TYPE_RESERVED_GLIB_LAST	(31)
 #define G_TYPE_RESERVED_BSE_FIRST	(32)
 #define G_TYPE_RESERVED_BSE_LAST	(48)
 #define G_TYPE_RESERVED_USER_FIRST	(49)


 /* Type Checking Macros
  */
 #define G_TYPE_IS_FUNDAMENTAL(type)             ((type) <= G_TYPE_FUNDAMENTAL_MAX)
 #define G_TYPE_IS_DERIVED(type)                 ((type) > G_TYPE_FUNDAMENTAL_MAX)
 #define G_TYPE_IS_INTERFACE(type)               (G_TYPE_FUNDAMENTAL (type) == G_TYPE_INTERFACE)
 #define G_TYPE_IS_CLASSED(type)                 (g_type_test_flags ((type), G_TYPE_FLAG_CLASSED))
 #define G_TYPE_IS_INSTANTIATABLE(type)          (g_type_test_flags ((type), G_TYPE_FLAG_INSTANTIATABLE))
 #define G_TYPE_IS_DERIVABLE(type)               (g_type_test_flags ((type), G_TYPE_FLAG_DERIVABLE))
 #define G_TYPE_IS_DEEP_DERIVABLE(type)          (g_type_test_flags ((type), G_TYPE_FLAG_DEEP_DERIVABLE))
 #define G_TYPE_IS_ABSTRACT(type)                (g_type_test_flags ((type), G_TYPE_FLAG_ABSTRACT))
 #define G_TYPE_IS_VALUE_ABSTRACT(type)          (g_type_test_flags ((type), G_TYPE_FLAG_VALUE_ABSTRACT))
 #define G_TYPE_IS_VALUE_TYPE(type)              (g_type_check_is_value_type (type))
 #define G_TYPE_HAS_VALUE_TABLE(type)            (g_type_value_table_peek (type) != NULL)


 /* Typedefs
  */
 #if     GLIB_SIZEOF_SIZE_T != GLIB_SIZEOF_LONG || !defined __cplusplus
 typedef gsize                           GType;
 #else   /* for historic reasons, C++ links against gulong GTypes */
 typedef gulong                          GType;
 #endif
 typedef struct _GValue                  GValue;
 typedef union  _GTypeCValue             GTypeCValue;
 typedef struct _GTypePlugin             GTypePlugin;
 typedef struct _GTypeClass              GTypeClass;
 typedef struct _GTypeInterface          GTypeInterface;
 typedef struct _GTypeInstance           GTypeInstance;
 typedef struct _GTypeInfo               GTypeInfo;
 typedef struct _GTypeFundamentalInfo    GTypeFundamentalInfo;
 typedef struct _GInterfaceInfo          GInterfaceInfo;
 typedef struct _GTypeValueTable         GTypeValueTable;
 typedef struct _GTypeQuery		GTypeQuery;


 /* Basic Type Structures
  */
 struct _GTypeClass
 {
   /*< private >*/
   GType g_type;
 };
 struct _GTypeInstance
 {
   /*< private >*/
   GTypeClass *g_class;
 };
 struct _GTypeInterface
 {
   /*< private >*/
   GType g_type;         /* iface type */
   GType g_instance_type;
 };
 struct _GTypeQuery
 {
   GType		type;
   const gchar  *type_name;
   guint		class_size;
   guint		instance_size;
 };


 /* Casts, checks and accessors for structured types
  * usage of these macros is reserved to type implementations only
  */
 /*< protected >*/
 #define G_TYPE_CHECK_INSTANCE(instance)				(_G_TYPE_CHI ((GTypeInstance*) (instance)))
 #define G_TYPE_CHECK_INSTANCE_CAST(instance, g_type, c_type)    (_G_TYPE_CIC ((instance), (g_type), c_type))
 #define G_TYPE_CHECK_INSTANCE_TYPE(instance, g_type)            (_G_TYPE_CIT ((instance), (g_type)))
 #define G_TYPE_INSTANCE_GET_CLASS(instance, g_type, c_type)     (_G_TYPE_IGC ((instance), (g_type), c_type))
 #define G_TYPE_INSTANCE_GET_INTERFACE(instance, g_type, c_type) (_G_TYPE_IGI ((instance), (g_type), c_type))
 #define G_TYPE_CHECK_CLASS_CAST(g_class, g_type, c_type)        (_G_TYPE_CCC ((g_class), (g_type), c_type))
 #define G_TYPE_CHECK_CLASS_TYPE(g_class, g_type)                (_G_TYPE_CCT ((g_class), (g_type)))
 #define G_TYPE_CHECK_VALUE(value)				(_G_TYPE_CHV ((value)))
 #define G_TYPE_CHECK_VALUE_TYPE(value, g_type)			(_G_TYPE_CVH ((value), (g_type)))
 #define G_TYPE_FROM_INSTANCE(instance)                          (G_TYPE_FROM_CLASS (((GTypeInstance*) (instance))->g_class))
 #define G_TYPE_FROM_CLASS(g_class)                              (((GTypeClass*) (g_class))->g_type)
 #define G_TYPE_FROM_INTERFACE(g_iface)                          (((GTypeInterface*) (g_iface))->g_type)

 #define G_TYPE_INSTANCE_GET_PRIVATE(instance, g_type, c_type)   ((c_type*) g_type_instance_get_private ((GTypeInstance*) (instance), (g_type)))


 /* debug flags for g_type_init_with_debug_flags() */
 typedef enum	/*< skip >*/
 {
   G_TYPE_DEBUG_NONE	= 0,
   G_TYPE_DEBUG_OBJECTS	= 1 << 0,
   G_TYPE_DEBUG_SIGNALS	= 1 << 1,
   G_TYPE_DEBUG_MASK	= 0x03
 } GTypeDebugFlags;


 /* --- prototypes --- */
 void                  g_type_init                    (void);
 void                  g_type_init_with_debug_flags   (GTypeDebugFlags  debug_flags);
 G_CONST_RETURN gchar* g_type_name                    (GType            type);
 GQuark                g_type_qname                   (GType            type);
 GType                 g_type_from_name               (const gchar     *name);
 GType                 g_type_parent                  (GType            type);
 guint                 g_type_depth                   (GType            type);
 GType                 g_type_next_base               (GType            leaf_type,
 						      GType            root_type);
 gboolean              g_type_is_a                    (GType            type,
 						      GType            is_a_type);
 gpointer              g_type_class_ref               (GType            type);
 gpointer              g_type_class_peek              (GType            type);
 gpointer              g_type_class_peek_static       (GType            type);
 void                  g_type_class_unref             (gpointer         g_class);
 gpointer              g_type_class_peek_parent       (gpointer         g_class);
 gpointer              g_type_interface_peek          (gpointer         instance_class,
 						      GType            iface_type);
 gpointer              g_type_interface_peek_parent   (gpointer         g_iface);

 gpointer              g_type_default_interface_ref   (GType            g_type);
 gpointer              g_type_default_interface_peek  (GType            g_type);
 void                  g_type_default_interface_unref (gpointer         g_iface);

 /* g_free() the returned arrays */
 GType*                g_type_children                (GType            type,
 						      guint           *n_children);
 GType*                g_type_interfaces              (GType            type,
 						      guint           *n_interfaces);

 /* per-type _static_ data */
 void                  g_type_set_qdata               (GType            type,
 						      GQuark           quark,
 						      gpointer         data);
 gpointer              g_type_get_qdata               (GType            type,
 						      GQuark           quark);
 void		      g_type_query		     (GType	       type,
 						      GTypeQuery      *query);


 /* --- type registration --- */
 typedef void   (*GBaseInitFunc)              (gpointer         g_class);
 typedef void   (*GBaseFinalizeFunc)          (gpointer         g_class);
 typedef void   (*GClassInitFunc)             (gpointer         g_class,
 					      gpointer         class_data);
 typedef void   (*GClassFinalizeFunc)         (gpointer         g_class,
 					      gpointer         class_data);
 typedef void   (*GInstanceInitFunc)          (GTypeInstance   *instance,
 					      gpointer         g_class);
 typedef void   (*GInterfaceInitFunc)         (gpointer         g_iface,
 					      gpointer         iface_data);
 typedef void   (*GInterfaceFinalizeFunc)     (gpointer         g_iface,
 					      gpointer         iface_data);
 typedef gboolean (*GTypeClassCacheFunc)	     (gpointer	       cache_data,
 					      GTypeClass      *g_class);
 typedef void     (*GTypeInterfaceCheckFunc)  (gpointer	       check_data,
 					      gpointer         g_iface);
 typedef enum    /*< skip >*/
 {
   G_TYPE_FLAG_CLASSED           = (1 << 0),
   G_TYPE_FLAG_INSTANTIATABLE    = (1 << 1),
   G_TYPE_FLAG_DERIVABLE         = (1 << 2),
   G_TYPE_FLAG_DEEP_DERIVABLE    = (1 << 3)
 } GTypeFundamentalFlags;
 typedef enum    /*< skip >*/
 {
   G_TYPE_FLAG_ABSTRACT		= (1 << 4),
   G_TYPE_FLAG_VALUE_ABSTRACT	= (1 << 5)
 } GTypeFlags;
 struct _GTypeInfo
 {
   /* interface types, classed types, instantiated types */
   guint16                class_size;

   GBaseInitFunc          base_init;
   GBaseFinalizeFunc      base_finalize;

   /* interface types, classed types, instantiated types */
   GClassInitFunc         class_init;
   GClassFinalizeFunc     class_finalize;
   gconstpointer          class_data;

   /* instantiated types */
   guint16                instance_size;
   guint16                n_preallocs;
   GInstanceInitFunc      instance_init;

   /* value handling */
   const GTypeValueTable	*value_table;
 };
 struct _GTypeFundamentalInfo
 {
   GTypeFundamentalFlags  type_flags;
 };
 struct _GInterfaceInfo
 {
   GInterfaceInitFunc     interface_init;
   GInterfaceFinalizeFunc interface_finalize;
   gpointer               interface_data;
 };
 struct _GTypeValueTable
 {
   void     (*value_init)         (GValue       *value);
   void     (*value_free)         (GValue       *value);
   void     (*value_copy)         (const GValue *src_value,
 				  GValue       *dest_value);
   /* varargs functionality (optional) */
   gpointer (*value_peek_pointer) (const GValue *value);
   gchar	    *collect_format;
   gchar*   (*collect_value)      (GValue       *value,
 				  guint         n_collect_values,
 				  GTypeCValue  *collect_values,
 				  guint		collect_flags);
   gchar	    *lcopy_format;
   gchar*   (*lcopy_value)        (const GValue *value,
 				  guint         n_collect_values,
 				  GTypeCValue  *collect_values,
 				  guint		collect_flags);
 };
 GType g_type_register_static		(GType			     parent_type,
 					 const gchar		    *type_name,
 					 const GTypeInfo	    *info,
 					 GTypeFlags		     flags);
 GType g_type_register_static_simple     (GType                       parent_type,
 					 const gchar                *type_name,
 					 guint                       class_size,
 					 GClassInitFunc              class_init,
 					 guint                       instance_size,
 					 GInstanceInitFunc           instance_init,
 					 GTypeFlags	             flags);

 GType g_type_register_dynamic		(GType			     parent_type,
 					 const gchar		    *type_name,
 					 GTypePlugin		    *plugin,
 					 GTypeFlags		     flags);
 GType g_type_register_fundamental	(GType			     type_id,
 					 const gchar		    *type_name,
 					 const GTypeInfo	    *info,
 					 const GTypeFundamentalInfo *finfo,
 					 GTypeFlags		     flags);
 void  g_type_add_interface_static	(GType			     instance_type,
 					 GType			     interface_type,
 					 const GInterfaceInfo	    *info);
 void  g_type_add_interface_dynamic	(GType			     instance_type,
 					 GType			     interface_type,
 					 GTypePlugin		    *plugin);
 void  g_type_interface_add_prerequisite (GType			     interface_type,
 					 GType			     prerequisite_type);
 GType*g_type_interface_prerequisites    (GType                       interface_type,
 					 guint                      *n_prerequisites);
 void     g_type_class_add_private       (gpointer                    g_class,
                                          gsize                       private_size);
 gpointer g_type_instance_get_private    (GTypeInstance              *instance,
                                          GType                       private_type);


 /* --- GType boilerplate --- */
 /* convenience macros for type implementations, which for a type GtkGadget will:
  * - prototype: static void     gtk_gadget_class_init (GtkGadgetClass *klass);
  * - prototype: static void     gtk_gadget_init       (GtkGadget      *self);
  * - define:    static gpointer gtk_gadget_parent_class = NULL;
  *   gtk_gadget_parent_class is initialized prior to calling gtk_gadget_class_init()
  * - implement: GType           gtk_gadget_get_type (void) { ... }
  * - support custom code in gtk_gadget_get_type() after the type is registered.
  *
  * macro arguments: TypeName, type_name, TYPE_PARENT, CODE
  * example: G_DEFINE_TYPE_WITH_CODE (GtkGadget, gtk_gadget, GTK_TYPE_WIDGET,
  *                                   g_print ("GtkGadget-id: %lu\n", g_define_type_id));
  */
 #define G_DEFINE_TYPE(TN, t_n, T_P)			    G_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, 0, {})
 #define G_DEFINE_TYPE_WITH_CODE(TN, t_n, T_P, _C_)	    _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, 0) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
 #define G_DEFINE_ABSTRACT_TYPE(TN, t_n, T_P)		    G_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT, {})
 #define G_DEFINE_ABSTRACT_TYPE_WITH_CODE(TN, t_n, T_P, _C_) _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
 #define G_DEFINE_TYPE_EXTENDED(TN, t_n, T_P, _f_, _C_)	    _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, _f_) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()

 /* convenience macro to ease interface addition in the CODE
  * section of G_DEFINE_TYPE_WITH_CODE() (this macro relies on
  * the g_define_type_id present within G_DEFINE_TYPE_WITH_CODE()).
  * usage example:
  * G_DEFINE_TYPE_WITH_CODE (GtkTreeStore, gtk_tree_store, G_TYPE_OBJECT,
  *                          G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
  *                                                 gtk_tree_store_tree_model_init));
  */
 #define G_IMPLEMENT_INTERFACE(TYPE_IFACE, iface_init)       { \
   const GInterfaceInfo g_implement_interface_info = { \
     (GInterfaceInitFunc) iface_init, NULL, NULL \
   }; \
   g_type_add_interface_static (g_define_type_id, TYPE_IFACE, &g_implement_interface_info); \
 }

 #define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \
 \
 static void     type_name##_init              (TypeName        *self); \
 static void     type_name##_class_init        (TypeName##Class *klass); \
 static gpointer type_name##_parent_class = NULL; \
 static void     type_name##_class_intern_init (gpointer klass) \
 { \
   type_name##_parent_class = g_type_class_peek_parent (klass); \
   type_name##_class_init ((TypeName##Class*) klass); \
 } \
 \
 GType \
 type_name##_get_type (void) \
 { \
   static volatile gsize g_define_type_id__volatile = 0; \
   if (g_once_init_enter (&g_define_type_id__volatile))  \
     { \
       GType g_define_type_id = \
         g_type_register_static_simple (TYPE_PARENT, \
                                        g_intern_static_string (#TypeName), \
                                        sizeof (TypeName##Class), \
                                        (GClassInitFunc) type_name##_class_intern_init, \
                                        sizeof (TypeName), \
                                        (GInstanceInitFunc) type_name##_init, \
                                        (GTypeFlags) flags); \
       { /* custom code follows */
 #define _G_DEFINE_TYPE_EXTENDED_END()	\
         /* following custom code */	\
       }					\
       g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
     }					\
   return g_define_type_id__volatile;	\
 } /* closes type_name##_get_type() */


 /* --- protected (for fundamental type implementations) --- */
 GTypePlugin*	 g_type_get_plugin		(GType		     type);
 GTypePlugin*	 g_type_interface_get_plugin	(GType		     instance_type,
 						 GType               interface_type);
 GType		 g_type_fundamental_next	(void);
 GType		 g_type_fundamental		(GType		     type_id);
 GTypeInstance*   g_type_create_instance         (GType               type);
 void             g_type_free_instance           (GTypeInstance      *instance);

 void		 g_type_add_class_cache_func    (gpointer	     cache_data,
 						 GTypeClassCacheFunc cache_func);
 void		 g_type_remove_class_cache_func (gpointer	     cache_data,
 						 GTypeClassCacheFunc cache_func);
 void             g_type_class_unref_uncached    (gpointer            g_class);

 void             g_type_add_interface_check     (gpointer	         check_data,
 						 GTypeInterfaceCheckFunc check_func);
 void             g_type_remove_interface_check  (gpointer	         check_data,
 						 GTypeInterfaceCheckFunc check_func);

 GTypeValueTable* g_type_value_table_peek        (GType		     type);


 /*< private >*/
 gboolean	 g_type_check_instance          (GTypeInstance      *instance) G_GNUC_PURE;
 GTypeInstance*   g_type_check_instance_cast     (GTypeInstance      *instance,
 						 GType               iface_type);
 gboolean         g_type_check_instance_is_a	(GTypeInstance      *instance,
 						 GType               iface_type) G_GNUC_PURE;
 GTypeClass*      g_type_check_class_cast        (GTypeClass         *g_class,
 						 GType               is_a_type);
 gboolean         g_type_check_class_is_a        (GTypeClass         *g_class,
 						 GType               is_a_type) G_GNUC_PURE;
 gboolean	 g_type_check_is_value_type     (GType		     type) G_GNUC_CONST;
 gboolean	 g_type_check_value             (GValue		    *value) G_GNUC_PURE;
 gboolean	 g_type_check_value_holds	(GValue		    *value,
 						 GType		     type) G_GNUC_PURE;
 gboolean         g_type_test_flags              (GType               type,
 						 guint               flags) G_GNUC_CONST;


 /* --- debugging functions --- */
 G_CONST_RETURN gchar* g_type_name_from_instance	(GTypeInstance	*instance);
 G_CONST_RETURN gchar* g_type_name_from_class	(GTypeClass	*g_class);


 /* --- internal functions --- */
 G_GNUC_INTERNAL void    g_value_c_init          (void); /* sync with gvalue.c */
 G_GNUC_INTERNAL void    g_value_types_init      (void); /* sync with gvaluetypes.c */
 G_GNUC_INTERNAL void    g_enum_types_init       (void); /* sync with genums.c */
 G_GNUC_INTERNAL void    g_param_type_init       (void); /* sync with gparam.c */
 G_GNUC_INTERNAL void    g_boxed_type_init       (void); /* sync with gboxed.c */
 G_GNUC_INTERNAL void    g_object_type_init      (void); /* sync with gobject.c */
 G_GNUC_INTERNAL void    g_param_spec_types_init (void); /* sync with gparamspecs.c */
 G_GNUC_INTERNAL void    g_value_transforms_init (void); /* sync with gvaluetransform.c */
 G_GNUC_INTERNAL void    g_signal_init           (void); /* sync with gsignal.c */


 /* --- implementation bits --- */
 #ifndef G_DISABLE_CAST_CHECKS
 #  define _G_TYPE_CIC(ip, gt, ct) \
     ((ct*) g_type_check_instance_cast ((GTypeInstance*) ip, gt))
 #  define _G_TYPE_CCC(cp, gt, ct) \
     ((ct*) g_type_check_class_cast ((GTypeClass*) cp, gt))
 #else /* G_DISABLE_CAST_CHECKS */
 #  define _G_TYPE_CIC(ip, gt, ct)       ((ct*) ip)
 #  define _G_TYPE_CCC(cp, gt, ct)       ((ct*) cp)
 #endif /* G_DISABLE_CAST_CHECKS */
 #define _G_TYPE_CHI(ip)			(g_type_check_instance ((GTypeInstance*) ip))
 #define _G_TYPE_CHV(vl)			(g_type_check_value ((GValue*) vl))
 #define _G_TYPE_IGC(ip, gt, ct)         ((ct*) (((GTypeInstance*) ip)->g_class))
 #define _G_TYPE_IGI(ip, gt, ct)         ((ct*) g_type_interface_peek (((GTypeInstance*) ip)->g_class, gt))
 #ifdef	__GNUC__
 #  define _G_TYPE_CIT(ip, gt)             (G_GNUC_EXTENSION ({ \
   GTypeInstance *__inst = (GTypeInstance*) ip; GType __t = gt; gboolean __r; \
   if (__inst && __inst->g_class && __inst->g_class->g_type == __t) \
     __r = TRUE; \
   else \
     __r = g_type_check_instance_is_a (__inst, __t); \
   __r; \
 }))
 #  define _G_TYPE_CCT(cp, gt)             (G_GNUC_EXTENSION ({ \
   GTypeClass *__class = (GTypeClass*) cp; GType __t = gt; gboolean __r; \
   if (__class && __class->g_type == __t) \
     __r = TRUE; \
   else \
     __r = g_type_check_class_is_a (__class, __t); \
   __r; \
 }))
 #  define _G_TYPE_CVH(vl, gt)             (G_GNUC_EXTENSION ({ \
   GValue *__val = (GValue*) vl; GType __t = gt; gboolean __r; \
   if (__val && __val->g_type == __t) \
     __r = TRUE; \
   else \
     __r = g_type_check_value_holds (__val, __t); \
   __r; \
 }))
 #else  /* !__GNUC__ */
 #  define _G_TYPE_CIT(ip, gt)             (g_type_check_instance_is_a ((GTypeInstance*) ip, gt))
 #  define _G_TYPE_CCT(cp, gt)             (g_type_check_class_is_a ((GTypeClass*) cp, gt))
 #  define _G_TYPE_CVH(vl, gt)             (g_type_check_value_holds ((GValue*) vl, gt))
 #endif /* !__GNUC__ */
 #define	G_TYPE_FLAG_RESERVED_ID_BIT	((GType) (1 << 0))
 extern GTypeDebugFlags			_g_type_debug_flags;

 G_END_DECLS

 #endif /* __G_TYPE_H__ */
	/* GObject - GLib Type, Object, Parameter and Signal Library
	* Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General
	* Public License along with this library; if not, write to the
	* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
	* Boston, MA 02111-1307, USA.
	*/
	#if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
	#error "Only <glib-object.h> can be included directly."
	#endif

	#ifndef __G_TYPE_H__
	#define __G_TYPE_H__

	#include <glib.h>

	G_BEGIN_DECLS

	/* Basic Type Macros
	*/
	#define G_TYPE_FUNDAMENTAL(type) (g_type_fundamental (type))
	#define G_TYPE_FUNDAMENTAL_MAX (255 << G_TYPE_FUNDAMENTAL_SHIFT)

	/* Constant fundamental types,
	* introduced by g_type_init().
	*/
	#define G_TYPE_INVALID G_TYPE_MAKE_FUNDAMENTAL (0)
	#define G_TYPE_NONE G_TYPE_MAKE_FUNDAMENTAL (1)
	#define G_TYPE_INTERFACE G_TYPE_MAKE_FUNDAMENTAL (2)
	#define G_TYPE_CHAR G_TYPE_MAKE_FUNDAMENTAL (3)
	#define G_TYPE_UCHAR G_TYPE_MAKE_FUNDAMENTAL (4)
	#define G_TYPE_BOOLEAN G_TYPE_MAKE_FUNDAMENTAL (5)
	#define G_TYPE_INT G_TYPE_MAKE_FUNDAMENTAL (6)
	#define G_TYPE_UINT G_TYPE_MAKE_FUNDAMENTAL (7)
	#define G_TYPE_LONG G_TYPE_MAKE_FUNDAMENTAL (8)
	#define G_TYPE_ULONG G_TYPE_MAKE_FUNDAMENTAL (9)
	#define G_TYPE_INT64 G_TYPE_MAKE_FUNDAMENTAL (10)
	#define G_TYPE_UINT64 G_TYPE_MAKE_FUNDAMENTAL (11)
	#define G_TYPE_ENUM G_TYPE_MAKE_FUNDAMENTAL (12)
	#define G_TYPE_FLAGS G_TYPE_MAKE_FUNDAMENTAL (13)
	#define G_TYPE_FLOAT G_TYPE_MAKE_FUNDAMENTAL (14)
	#define G_TYPE_DOUBLE G_TYPE_MAKE_FUNDAMENTAL (15)
	#define G_TYPE_STRING G_TYPE_MAKE_FUNDAMENTAL (16)
	#define G_TYPE_POINTER G_TYPE_MAKE_FUNDAMENTAL (17)
	#define G_TYPE_BOXED G_TYPE_MAKE_FUNDAMENTAL (18)
	#define G_TYPE_PARAM G_TYPE_MAKE_FUNDAMENTAL (19)
	#define G_TYPE_OBJECT G_TYPE_MAKE_FUNDAMENTAL (20)


	/* Reserved fundamental type numbers to create new fundamental
	* type IDs with G_TYPE_MAKE_FUNDAMENTAL().
	* Send email to gtk-devel-list@redhat.com for reservations.
	*/
	#define G_TYPE_FUNDAMENTAL_SHIFT (2)
	#define G_TYPE_MAKE_FUNDAMENTAL(x) ((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
	#define G_TYPE_RESERVED_GLIB_FIRST (21)
	#define G_TYPE_RESERVED_GLIB_LAST (31)
	#define G_TYPE_RESERVED_BSE_FIRST (32)
	#define G_TYPE_RESERVED_BSE_LAST (48)
	#define G_TYPE_RESERVED_USER_FIRST (49)


	/* Type Checking Macros
	*/
	#define G_TYPE_IS_FUNDAMENTAL(type) ((type) <= G_TYPE_FUNDAMENTAL_MAX)
	#define G_TYPE_IS_DERIVED(type) ((type) > G_TYPE_FUNDAMENTAL_MAX)
	#define G_TYPE_IS_INTERFACE(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_INTERFACE)
	#define G_TYPE_IS_CLASSED(type) (g_type_test_flags ((type), G_TYPE_FLAG_CLASSED))
	#define G_TYPE_IS_INSTANTIATABLE(type) (g_type_test_flags ((type), G_TYPE_FLAG_INSTANTIATABLE))
	#define G_TYPE_IS_DERIVABLE(type) (g_type_test_flags ((type), G_TYPE_FLAG_DERIVABLE))
	#define G_TYPE_IS_DEEP_DERIVABLE(type) (g_type_test_flags ((type), G_TYPE_FLAG_DEEP_DERIVABLE))
	#define G_TYPE_IS_ABSTRACT(type) (g_type_test_flags ((type), G_TYPE_FLAG_ABSTRACT))
	#define G_TYPE_IS_VALUE_ABSTRACT(type) (g_type_test_flags ((type), G_TYPE_FLAG_VALUE_ABSTRACT))
	#define G_TYPE_IS_VALUE_TYPE(type) (g_type_check_is_value_type (type))
	#define G_TYPE_HAS_VALUE_TABLE(type) (g_type_value_table_peek (type) != NULL)


	/* Typedefs
	*/
	#if GLIB_SIZEOF_SIZE_T != GLIB_SIZEOF_LONG \|\| !defined __cplusplus
	typedef gsize GType;
	#else /* for historic reasons, C++ links against gulong GTypes */
	typedef gulong GType;
	#endif
	typedef struct _GValue GValue;
	typedef union _GTypeCValue GTypeCValue;
	typedef struct _GTypePlugin GTypePlugin;
	typedef struct _GTypeClass GTypeClass;
	typedef struct _GTypeInterface GTypeInterface;
	typedef struct _GTypeInstance GTypeInstance;
	typedef struct _GTypeInfo GTypeInfo;
	typedef struct _GTypeFundamentalInfo GTypeFundamentalInfo;
	typedef struct _GInterfaceInfo GInterfaceInfo;
	typedef struct _GTypeValueTable GTypeValueTable;
	typedef struct _GTypeQuery GTypeQuery;


	/* Basic Type Structures
	*/
	struct _GTypeClass
	{
	/< private >/
	GType g_type;
	};
	struct _GTypeInstance
	{
	/< private >/
	GTypeClass *g_class;
	};
	struct _GTypeInterface
	{
	/< private >/
	GType g_type; /* iface type */
	GType g_instance_type;
	};
	struct _GTypeQuery
	{
	GType type;
	const gchar *type_name;
	guint class_size;
	guint instance_size;
	};


	/* Casts, checks and accessors for structured types
	* usage of these macros is reserved to type implementations only
	*/
	/< protected >/
	#define G_TYPE_CHECK_INSTANCE(instance) (_G_TYPE_CHI ((GTypeInstance*) (instance)))
	#define G_TYPE_CHECK_INSTANCE_CAST(instance, g_type, c_type) (_G_TYPE_CIC ((instance), (g_type), c_type))
	#define G_TYPE_CHECK_INSTANCE_TYPE(instance, g_type) (_G_TYPE_CIT ((instance), (g_type)))
	#define G_TYPE_INSTANCE_GET_CLASS(instance, g_type, c_type) (_G_TYPE_IGC ((instance), (g_type), c_type))
	#define G_TYPE_INSTANCE_GET_INTERFACE(instance, g_type, c_type) (_G_TYPE_IGI ((instance), (g_type), c_type))
	#define G_TYPE_CHECK_CLASS_CAST(g_class, g_type, c_type) (_G_TYPE_CCC ((g_class), (g_type), c_type))
	#define G_TYPE_CHECK_CLASS_TYPE(g_class, g_type) (_G_TYPE_CCT ((g_class), (g_type)))
	#define G_TYPE_CHECK_VALUE(value) (_G_TYPE_CHV ((value)))
	#define G_TYPE_CHECK_VALUE_TYPE(value, g_type) (_G_TYPE_CVH ((value), (g_type)))
	#define G_TYPE_FROM_INSTANCE(instance) (G_TYPE_FROM_CLASS (((GTypeInstance*) (instance))->g_class))
	#define G_TYPE_FROM_CLASS(g_class) (((GTypeClass*) (g_class))->g_type)
	#define G_TYPE_FROM_INTERFACE(g_iface) (((GTypeInterface*) (g_iface))->g_type)

	#define G_TYPE_INSTANCE_GET_PRIVATE(instance, g_type, c_type) ((c_type) g_type_instance_get_private ((GTypeInstance) (instance), (g_type)))


	/* debug flags for g_type_init_with_debug_flags() */
	typedef enum /< skip >/
	{
	G_TYPE_DEBUG_NONE = 0,
	G_TYPE_DEBUG_OBJECTS = 1 << 0,
	G_TYPE_DEBUG_SIGNALS = 1 << 1,
	G_TYPE_DEBUG_MASK = 0x03
	} GTypeDebugFlags;


	/* --- prototypes --- */
	void g_type_init (void);
	void g_type_init_with_debug_flags (GTypeDebugFlags debug_flags);
	G_CONST_RETURN gchar* g_type_name (GType type);
	GQuark g_type_qname (GType type);
	GType g_type_from_name (const gchar *name);
	GType g_type_parent (GType type);
	guint g_type_depth (GType type);
	GType g_type_next_base (GType leaf_type,
	GType root_type);
	gboolean g_type_is_a (GType type,
	GType is_a_type);
	gpointer g_type_class_ref (GType type);
	gpointer g_type_class_peek (GType type);
	gpointer g_type_class_peek_static (GType type);
	void g_type_class_unref (gpointer g_class);
	gpointer g_type_class_peek_parent (gpointer g_class);
	gpointer g_type_interface_peek (gpointer instance_class,
	GType iface_type);
	gpointer g_type_interface_peek_parent (gpointer g_iface);

	gpointer g_type_default_interface_ref (GType g_type);
	gpointer g_type_default_interface_peek (GType g_type);
	void g_type_default_interface_unref (gpointer g_iface);

	/* g_free() the returned arrays */
	GType* g_type_children (GType type,
	guint *n_children);
	GType* g_type_interfaces (GType type,
	guint *n_interfaces);

	/* per-type _static_ data */
	void g_type_set_qdata (GType type,
	GQuark quark,
	gpointer data);
	gpointer g_type_get_qdata (GType type,
	GQuark quark);
	void g_type_query (GType type,
	GTypeQuery *query);


	/* --- type registration --- */
	typedef void (*GBaseInitFunc) (gpointer g_class);
	typedef void (*GBaseFinalizeFunc) (gpointer g_class);
	typedef void (*GClassInitFunc) (gpointer g_class,
	gpointer class_data);
	typedef void (*GClassFinalizeFunc) (gpointer g_class,
	gpointer class_data);
	typedef void (GInstanceInitFunc) (GTypeInstance instance,
	gpointer g_class);
	typedef void (*GInterfaceInitFunc) (gpointer g_iface,
	gpointer iface_data);
	typedef void (*GInterfaceFinalizeFunc) (gpointer g_iface,
	gpointer iface_data);
	typedef gboolean (*GTypeClassCacheFunc) (gpointer cache_data,
	GTypeClass *g_class);
	typedef void (*GTypeInterfaceCheckFunc) (gpointer check_data,
	gpointer g_iface);
	typedef enum /< skip >/
	{
	G_TYPE_FLAG_CLASSED = (1 << 0),
	G_TYPE_FLAG_INSTANTIATABLE = (1 << 1),
	G_TYPE_FLAG_DERIVABLE = (1 << 2),
	G_TYPE_FLAG_DEEP_DERIVABLE = (1 << 3)
	} GTypeFundamentalFlags;
	typedef enum /< skip >/
	{
	G_TYPE_FLAG_ABSTRACT = (1 << 4),
	G_TYPE_FLAG_VALUE_ABSTRACT = (1 << 5)
	} GTypeFlags;
	struct _GTypeInfo
	{
	/* interface types, classed types, instantiated types */
	guint16 class_size;

	GBaseInitFunc base_init;
	GBaseFinalizeFunc base_finalize;

	/* interface types, classed types, instantiated types */
	GClassInitFunc class_init;
	GClassFinalizeFunc class_finalize;
	gconstpointer class_data;

	/* instantiated types */
	guint16 instance_size;
	guint16 n_preallocs;
	GInstanceInitFunc instance_init;

	/* value handling */
	const GTypeValueTable *value_table;
	};
	struct _GTypeFundamentalInfo
	{
	GTypeFundamentalFlags type_flags;
	};
	struct _GInterfaceInfo
	{
	GInterfaceInitFunc interface_init;
	GInterfaceFinalizeFunc interface_finalize;
	gpointer interface_data;
	};
	struct _GTypeValueTable
	{
	void (value_init) (GValue value);
	void (value_free) (GValue value);
	void (value_copy) (const GValue src_value,
	GValue *dest_value);
	/* varargs functionality (optional) */
	gpointer (value_peek_pointer) (const GValue value);
	gchar *collect_format;
	gchar* (collect_value) (GValue value,
	guint n_collect_values,
	GTypeCValue *collect_values,
	guint collect_flags);
	gchar *lcopy_format;
	gchar* (lcopy_value) (const GValue value,
	guint n_collect_values,
	GTypeCValue *collect_values,
	guint collect_flags);
	};
	GType g_type_register_static (GType parent_type,
	const gchar *type_name,
	const GTypeInfo *info,
	GTypeFlags flags);
	GType g_type_register_static_simple (GType parent_type,
	const gchar *type_name,
	guint class_size,
	GClassInitFunc class_init,
	guint instance_size,
	GInstanceInitFunc instance_init,
	GTypeFlags flags);

	GType g_type_register_dynamic (GType parent_type,
	const gchar *type_name,
	GTypePlugin *plugin,
	GTypeFlags flags);
	GType g_type_register_fundamental (GType type_id,
	const gchar *type_name,
	const GTypeInfo *info,
	const GTypeFundamentalInfo *finfo,
	GTypeFlags flags);
	void g_type_add_interface_static (GType instance_type,
	GType interface_type,
	const GInterfaceInfo *info);
	void g_type_add_interface_dynamic (GType instance_type,
	GType interface_type,
	GTypePlugin *plugin);
	void g_type_interface_add_prerequisite (GType interface_type,
	GType prerequisite_type);
	GType*g_type_interface_prerequisites (GType interface_type,
	guint *n_prerequisites);
	void g_type_class_add_private (gpointer g_class,
	gsize private_size);
	gpointer g_type_instance_get_private (GTypeInstance *instance,
	GType private_type);


	/* --- GType boilerplate --- */
	/* convenience macros for type implementations, which for a type GtkGadget will:
	* - prototype: static void gtk_gadget_class_init (GtkGadgetClass *klass);
	* - prototype: static void gtk_gadget_init (GtkGadget *self);
	* - define: static gpointer gtk_gadget_parent_class = NULL;
	* gtk_gadget_parent_class is initialized prior to calling gtk_gadget_class_init()
	* - implement: GType gtk_gadget_get_type (void) { ... }
	* - support custom code in gtk_gadget_get_type() after the type is registered.
	*
	* macro arguments: TypeName, type_name, TYPE_PARENT, CODE
	* example: G_DEFINE_TYPE_WITH_CODE (GtkGadget, gtk_gadget, GTK_TYPE_WIDGET,
	* g_print ("GtkGadget-id: %lu\n", g_define_type_id));
	*/
	#define G_DEFINE_TYPE(TN, t_n, T_P) G_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, 0, {})
	#define G_DEFINE_TYPE_WITH_CODE(TN, t_n, T_P, _C_) _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, 0) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
	#define G_DEFINE_ABSTRACT_TYPE(TN, t_n, T_P) G_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT, {})
	#define G_DEFINE_ABSTRACT_TYPE_WITH_CODE(TN, t_n, T_P, _C_) _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
	#define G_DEFINE_TYPE_EXTENDED(TN, t_n, T_P, _f_, _C_) _G_DEFINE_TYPE_EXTENDED_BEGIN (TN, t_n, T_P, _f_) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()

	/* convenience macro to ease interface addition in the CODE
	* section of G_DEFINE_TYPE_WITH_CODE() (this macro relies on
	* the g_define_type_id present within G_DEFINE_TYPE_WITH_CODE()).
	* usage example:
	* G_DEFINE_TYPE_WITH_CODE (GtkTreeStore, gtk_tree_store, G_TYPE_OBJECT,
	* G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
	* gtk_tree_store_tree_model_init));
	*/
	#define G_IMPLEMENT_INTERFACE(TYPE_IFACE, iface_init) { \
	const GInterfaceInfo g_implement_interface_info = { \
	(GInterfaceInitFunc) iface_init, NULL, NULL \
	}; \
	g_type_add_interface_static (g_define_type_id, TYPE_IFACE, &g_implement_interface_info); \
	}

	#define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \
	\
	static void type_name##_init (TypeName *self); \
	static void type_name##_class_init (TypeName##Class *klass); \
	static gpointer type_name##_parent_class = NULL; \
	static void type_name##_class_intern_init (gpointer klass) \
	{ \
	type_name##_parent_class = g_type_class_peek_parent (klass); \
	type_name##_class_init ((TypeName##Class*) klass); \
	} \
	\
	GType \
	type_name##_get_type (void) \
	{ \
	static volatile gsize g_define_type_id__volatile = 0; \
	if (g_once_init_enter (&g_define_type_id__volatile)) \
	{ \
	GType g_define_type_id = \
	g_type_register_static_simple (TYPE_PARENT, \
	g_intern_static_string (#TypeName), \
	sizeof (TypeName##Class), \
	(GClassInitFunc) type_name##_class_intern_init, \
	sizeof (TypeName), \
	(GInstanceInitFunc) type_name##_init, \
	(GTypeFlags) flags); \
	{ /* custom code follows */
	#define _G_DEFINE_TYPE_EXTENDED_END() \
	/* following custom code */ \
	} \
	g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
	} \
	return g_define_type_id__volatile; \
	} /* closes type_name##_get_type() */


	/* --- protected (for fundamental type implementations) --- */
	GTypePlugin* g_type_get_plugin (GType type);
	GTypePlugin* g_type_interface_get_plugin (GType instance_type,
	GType interface_type);
	GType g_type_fundamental_next (void);
	GType g_type_fundamental (GType type_id);
	GTypeInstance* g_type_create_instance (GType type);
	void g_type_free_instance (GTypeInstance *instance);

	void g_type_add_class_cache_func (gpointer cache_data,
	GTypeClassCacheFunc cache_func);
	void g_type_remove_class_cache_func (gpointer cache_data,
	GTypeClassCacheFunc cache_func);
	void g_type_class_unref_uncached (gpointer g_class);

	void g_type_add_interface_check (gpointer check_data,
	GTypeInterfaceCheckFunc check_func);
	void g_type_remove_interface_check (gpointer check_data,
	GTypeInterfaceCheckFunc check_func);

	GTypeValueTable* g_type_value_table_peek (GType type);


	/< private >/
	gboolean g_type_check_instance (GTypeInstance *instance) G_GNUC_PURE;
	GTypeInstance* g_type_check_instance_cast (GTypeInstance *instance,
	GType iface_type);
	gboolean g_type_check_instance_is_a (GTypeInstance *instance,
	GType iface_type) G_GNUC_PURE;
	GTypeClass* g_type_check_class_cast (GTypeClass *g_class,
	GType is_a_type);
	gboolean g_type_check_class_is_a (GTypeClass *g_class,
	GType is_a_type) G_GNUC_PURE;
	gboolean g_type_check_is_value_type (GType type) G_GNUC_CONST;
	gboolean g_type_check_value (GValue *value) G_GNUC_PURE;
	gboolean g_type_check_value_holds (GValue *value,
	GType type) G_GNUC_PURE;
	gboolean g_type_test_flags (GType type,
	guint flags) G_GNUC_CONST;


	/* --- debugging functions --- */
	G_CONST_RETURN gchar* g_type_name_from_instance (GTypeInstance *instance);
	G_CONST_RETURN gchar* g_type_name_from_class (GTypeClass *g_class);


	/* --- internal functions --- */
	G_GNUC_INTERNAL void g_value_c_init (void); /* sync with gvalue.c */
	G_GNUC_INTERNAL void g_value_types_init (void); /* sync with gvaluetypes.c */
	G_GNUC_INTERNAL void g_enum_types_init (void); /* sync with genums.c */
	G_GNUC_INTERNAL void g_param_type_init (void); /* sync with gparam.c */
	G_GNUC_INTERNAL void g_boxed_type_init (void); /* sync with gboxed.c */
	G_GNUC_INTERNAL void g_object_type_init (void); /* sync with gobject.c */
	G_GNUC_INTERNAL void g_param_spec_types_init (void); /* sync with gparamspecs.c */
	G_GNUC_INTERNAL void g_value_transforms_init (void); /* sync with gvaluetransform.c */
	G_GNUC_INTERNAL void g_signal_init (void); /* sync with gsignal.c */


	/* --- implementation bits --- */
	#ifndef G_DISABLE_CAST_CHECKS
	# define _G_TYPE_CIC(ip, gt, ct) \
	((ct) g_type_check_instance_cast ((GTypeInstance) ip, gt))
	# define _G_TYPE_CCC(cp, gt, ct) \
	((ct) g_type_check_class_cast ((GTypeClass) cp, gt))
	#else /* G_DISABLE_CAST_CHECKS */
	# define _G_TYPE_CIC(ip, gt, ct) ((ct*) ip)
	# define _G_TYPE_CCC(cp, gt, ct) ((ct*) cp)
	#endif /* G_DISABLE_CAST_CHECKS */
	#define _G_TYPE_CHI(ip) (g_type_check_instance ((GTypeInstance*) ip))
	#define _G_TYPE_CHV(vl) (g_type_check_value ((GValue*) vl))
	#define _G_TYPE_IGC(ip, gt, ct) ((ct) (((GTypeInstance) ip)->g_class))
	#define _G_TYPE_IGI(ip, gt, ct) ((ct) g_type_interface_peek (((GTypeInstance) ip)->g_class, gt))
	#ifdef __GNUC__
	# define _G_TYPE_CIT(ip, gt) (G_GNUC_EXTENSION ({ \
	GTypeInstance __inst = (GTypeInstance) ip; GType __t = gt; gboolean __r; \
	if (__inst && __inst->g_class && __inst->g_class->g_type == __t) \
	__r = TRUE; \
	else \
	__r = g_type_check_instance_is_a (__inst, __t); \
	__r; \
	}))
	# define _G_TYPE_CCT(cp, gt) (G_GNUC_EXTENSION ({ \
	GTypeClass __class = (GTypeClass) cp; GType __t = gt; gboolean __r; \
	if (__class && __class->g_type == __t) \
	__r = TRUE; \
	else \
	__r = g_type_check_class_is_a (__class, __t); \
	__r; \
	}))
	# define _G_TYPE_CVH(vl, gt) (G_GNUC_EXTENSION ({ \
	GValue __val = (GValue) vl; GType __t = gt; gboolean __r; \
	if (__val && __val->g_type == __t) \
	__r = TRUE; \
	else \
	__r = g_type_check_value_holds (__val, __t); \
	__r; \
	}))
	#else /* !__GNUC__ */
	# define _G_TYPE_CIT(ip, gt) (g_type_check_instance_is_a ((GTypeInstance*) ip, gt))
	# define _G_TYPE_CCT(cp, gt) (g_type_check_class_is_a ((GTypeClass*) cp, gt))
	# define _G_TYPE_CVH(vl, gt) (g_type_check_value_holds ((GValue*) vl, gt))
	#endif /* !__GNUC__ */
	#define G_TYPE_FLAG_RESERVED_ID_BIT ((GType) (1 << 0))
	extern GTypeDebugFlags _g_type_debug_flags;

	G_END_DECLS

	#endif /* __G_TYPE_H__ */