My Project
sql_callback.h
00001 /*
00002   Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
00003 
00004   This program is free software; you can redistribute it and/or modify
00005   it under the terms of the GNU General Public License as published by
00006   the Free Software Foundation; version 2 of the License.
00007 
00008   This program is distributed in the hope that it will be useful,
00009   but WITHOUT ANY WARRANTY; without even the implied warranty of
00010   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011   GNU General Public License for more details.
00012 
00013   You should have received a copy of the GNU General Public License
00014   along with this program; if not, write to the Free Software
00015   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
00016 */
00017 
00018 #ifndef SQL_CALLBACK_INCLUDED
00019 #define SQL_CALLBACK_INCLUDED
00020 
00033 #define MYSQL_CALLBACK(OBJ, FUNC, PARAMS)         \
00034   do {                                            \
00035     if ((OBJ) && ((OBJ)->FUNC))                   \
00036       (OBJ)->FUNC PARAMS;                         \
00037   } while (0)
00038 
00039 #define MYSQL_CALLBACK_ELSE(OBJ, FUNC, PARAMS, ELSE)    \
00040   (((OBJ) && ((OBJ)->FUNC)) ? (OBJ)->FUNC PARAMS : (ELSE))
00041 
00042 
00043 #endif /* SQL_CALLBACK_INCLUDED */
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines