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Add _DBUS_GNUC_WARN_UNUSED_RESULT, similar to GLib's

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Bug: https://bugs.freedesktop.org/show_bug.cgi?id=54972
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Ralf Habacker <ralf.habacker@freenet.de>
Reviewed-by: Alban Crequy <alban.crequy@collabora.co.uk>
This commit is contained in:
Simon McVittie 2013-04-15 20:40:21 +01:00
parent bd5cec18cd
commit 7ac9b68220
1 changed files with 9 additions and 1 deletions
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10
dbus/dbus-macros.h
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@ -88,13 +88,21 @@
#define DBUS_ALLOC_SIZE2(x,y)
#endif
#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
#define _DBUS_GNUC_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
#define _DBUS_GNUC_WARN_UNUSED_RESULT
#endif
/** @def _DBUS_GNUC_PRINTF
* used to tell gcc about printf format strings
*/
/** @def _DBUS_GNUC_NORETURN
* used to tell gcc about functions that never return, such as _dbus_abort()
*/
/** @def _DBUS_GNUC_WARN_UNUSED_RESULT
* used to tell gcc about functions whose result must be used
*/
/* Normally docs are in .c files, but there isn't a .c file for this. */
/**