epoc32/include/stdapis/glib-2.0/gobject/gvalue.h
author William Roberts <williamr@symbian.org>
Tue, 16 Mar 2010 16:12:26 +0000 (2010-03-16)
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
permissions -rw-r--r--
Final list of Symbian^2 public API header files
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/* GObject - GLib Type, Object, Parameter and Signal Library
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 * Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
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 * Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General
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 * Public License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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 * Boston, MA 02111-1307, USA.
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 *
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 * gvalue.h: generic GValue functions
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 */
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#if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
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#error "Only <glib-object.h> can be included directly."
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#endif
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#ifndef __G_VALUE_H__
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#define __G_VALUE_H__
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#include <_ansi.h>
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#include	<gobject/gtype.h>
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G_BEGIN_DECLS
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/* --- type macros --- */
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#define	G_TYPE_IS_VALUE(type)		(g_type_check_is_value_type (type))
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#define	G_IS_VALUE(value)		(G_TYPE_CHECK_VALUE (value))
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#define	G_VALUE_TYPE(value)		(((GValue*) (value))->g_type)
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#define	G_VALUE_TYPE_NAME(value)	(g_type_name (G_VALUE_TYPE (value)))
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#define G_VALUE_HOLDS(value,type)	(G_TYPE_CHECK_VALUE_TYPE ((value), (type)))
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/* --- typedefs & structures --- */
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typedef void (*GValueTransform) (const GValue *src_value,
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				 GValue       *dest_value);
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struct _GValue
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{
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  /*< private >*/
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  GType		g_type;
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  /* public for GTypeValueTable methods */
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  union {
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    gint	v_int;
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    guint	v_uint;
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    glong	v_long;
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    gulong	v_ulong;
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    gint64      v_int64;
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    guint64     v_uint64;
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    gfloat	v_float;
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    gdouble	v_double;
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    gpointer	v_pointer;
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  } data[2];
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};
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/* --- prototypes --- */
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IMPORT_C GValue*         g_value_init	   	(GValue       *value,
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					 GType         g_type);
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IMPORT_C void            g_value_copy    	(const GValue *src_value,
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					 GValue       *dest_value);
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IMPORT_C GValue*         g_value_reset   	(GValue       *value);
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IMPORT_C void            g_value_unset   	(GValue       *value);
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IMPORT_C void		g_value_set_instance	(GValue	      *value,
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					 gpointer      instance);
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/* --- private --- */
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IMPORT_C gboolean	g_value_fits_pointer	(const GValue *value);
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IMPORT_C gpointer	g_value_peek_pointer	(const GValue *value);
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/* --- implementation details --- */
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IMPORT_C gboolean g_value_type_compatible	(GType		 src_type,
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					 GType		 dest_type);
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IMPORT_C gboolean g_value_type_transformable	(GType           src_type,
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					 GType           dest_type);
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IMPORT_C gboolean g_value_transform		(const GValue   *src_value,
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					 GValue         *dest_value);
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IMPORT_C void	g_value_register_transform_func	(GType		 src_type,
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					 GType		 dest_type,
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					 GValueTransform transform_func);
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#define G_VALUE_NOCOPY_CONTENTS		(1 << 27)
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G_END_DECLS
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#endif /* __G_VALUE_H__ */