dbus-macros.h
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上传日期:2022-06-22
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- /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
- /* dbus-macros.h generic macros
- *
- * Copyright (C) 2002 Red Hat Inc.
- *
- * Licensed under the Academic Free License version 2.1
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
- #if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION)
- #error "Only <dbus/dbus.h> can be included directly, this file may disappear or change contents."
- #endif
- #ifndef DBUS_MACROS_H
- #define DBUS_MACROS_H
- #ifdef __cplusplus
- # define DBUS_BEGIN_DECLS extern "C" {
- # define DBUS_END_DECLS }
- #else
- # define DBUS_BEGIN_DECLS
- # define DBUS_END_DECLS
- #endif
- #ifndef TRUE
- # define TRUE 1
- #endif
- #ifndef FALSE
- # define FALSE 0
- #endif
- #ifndef NULL
- # ifdef __cplusplus
- # define NULL (0L)
- # else /* !__cplusplus */
- # define NULL ((void*) 0)
- # endif /* !__cplusplus */
- #endif
- #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
- # define DBUS_DEPRECATED __attribute__ ((__deprecated__))
- #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
- # define DBUS_DEPRECATED __declspec(deprecated)
- #else
- # define DBUS_DEPRECATED
- #endif
- #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)
- # define _DBUS_GNUC_EXTENSION __extension__
- #else
- # define _DBUS_GNUC_EXTENSION
- #endif
- /* Normally docs are in .c files, but there isn't a .c file for this. */
- /**
- * @defgroup DBusMacros Utility macros
- * @ingroup DBus
- * @brief #TRUE, #FALSE, #NULL, and so on
- *
- * Utility macros.
- *
- * @{
- */
- /**
- * @def DBUS_BEGIN_DECLS
- *
- * Macro used prior to declaring functions in the D-Bus header
- * files. Expands to "extern "C"" when using a C++ compiler,
- * and expands to nothing when using a C compiler.
- *
- * Please don't use this in your own code, consider it
- * D-Bus internal.
- */
- /**
- * @def DBUS_END_DECLS
- *
- * Macro used after declaring functions in the D-Bus header
- * files. Expands to "}" when using a C++ compiler,
- * and expands to nothing when using a C compiler.
- *
- * Please don't use this in your own code, consider it
- * D-Bus internal.
- */
- /**
- * @def TRUE
- *
- * Expands to "1"
- */
- /**
- * @def FALSE
- *
- * Expands to "0"
- */
- /**
- * @def NULL
- *
- * A null pointer, defined appropriately for C or C++.
- */
- /**
- * @def DBUS_DEPRECATED
- *
- * Tells the compiler to warn about a function or type if it's used.
- * Code marked in this way should also be enclosed in
- * @code
- * #ifndef DBUS_DISABLE_DEPRECATED
- * deprecated stuff here
- * #endif
- * @endcode
- *
- * Please don't use this in your own code, consider it
- * D-Bus internal.
- */
- /**
- * @def _DBUS_GNUC_EXTENSION
- *
- * Tells gcc not to warn about extensions to the C standard in the
- * following expression, even if compiling with -pedantic. Do not use
- * this macro in your own code; please consider it to be internal to libdbus.
- */
- /** @} */
- #endif /* DBUS_MACROS_H */