include/Xm/CacheP.h

0001 /*
0002  * Motif
0003  *
0004  * Copyright (c) 1987-2012, The Open Group. All rights reserved.
0005  *
0006  * These libraries and programs are free software; you can
0007  * redistribute them and/or modify them under the terms of the GNU
0008  * Lesser General Public License as published by the Free Software
0009  * Foundation; either version 2 of the License, or (at your option)
0010  * any later version.
0011  *
0012  * These libraries and programs are distributed in the hope that
0013  * they will be useful, but WITHOUT ANY WARRANTY; without even the
0014  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
0015  * PURPOSE. See the GNU Lesser General Public License for more
0016  * details.
0017  *
0018  * You should have received a copy of the GNU Lesser General Public
0019  * License along with these librararies and programs; if not, write
0020  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
0021  * Floor, Boston, MA 02110-1301 USA
0022 */
0023 #ifndef _XmCacheP_h
0024 #define _XmCacheP_h
0025
0026 #include <Xm/GadgetP.h>
0027
0028 #ifdef __cplusplus
0029 extern "C" {
0030 #endif
0031
0032 /* A few convenience macros */
0033
0034 #define ClassCacheHead(cp)  ((cp)->cache_head)
0035 #define ClassCacheCopy(cp)  ((cp)->cache_copy)
0036 #define ClassCacheCompare(cp)   ((cp)->cache_compare)
0037 #define CacheDataPtr(p)     ((XtPointer)&((XmGadgetCacheRef*)p)->data)
0038 #define DataToGadgetCache(p)    ((char*)p - XtOffsetOf(XmGadgetCacheRef,data))
0039
0040
0041 #ifdef __cplusplus
0042 }  /* Close scope of 'extern "C"' declaration which encloses file. */
0043 #endif
0044
0045 #endif /* _XmCacheP_h */
0046 /* DON'T ADD ANYTHING AFTER THIS #endif */