globals.c revision 485f0483 
1/* $Xorg: globals.c,v 1.4 2001/02/09 02:03:50 xorgcvs Exp $ */
2/*
3
4Copyright 1989, 1998  The Open Group
5
6Permission to use, copy, modify, distribute, and sell this software and its
7documentation for any purpose is hereby granted without fee, provided that
8the above copyright notice appear in all copies and that both that
9copyright notice and this permission notice appear in supporting
10documentation.
11
12The above copyright notice and this permission notice shall be included
13in all copies or substantial portions of the Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
19OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21OTHER DEALINGS IN THE SOFTWARE.
22
23Except as contained in this notice, the name of The Open Group shall
24not be used in advertising or otherwise to promote the sale, use or
25other dealings in this Software without prior written authorization
26from The Open Group.
27
28*/
29/* $XFree86: xc/lib/Xext/globals.c,v 3.4 2001/07/29 05:01:12 tsi Exp $ */
30
31/*
32 * This file should contain only those objects which must be predefined.
33 */
34#ifdef HAVE_CONFIG_H
35#include <config.h>
36#endif
37#include <X11/Xlib.h>
38#include <X11/extensions/Xext.h>
39#include <stddef.h>			/* for definition of NULL */
40
41/*
42 * If possible, it is useful to have the global data default to a null value.
43 * Some shared library implementations are *much* happier if there isn't any
44 * global initialized data.
45 */
46#ifdef NULL_NOT_ZERO			/* then need to initialize */
47#define SetZero(t,var,z) t var = z
48#else
49#define SetZero(t,var,z) t var
50#endif
51
52#ifdef ATTSHAREDLIB			/* then need extra variables */
53/*
54 * If we need to define extra variables for each global
55 */
56#if !defined(UNIXCPP) || defined(ANSICPP)
57#define ZEROINIT(t,var,val) SetZero(t,var,val); \
58  SetZero (long, _libX_##var##Flag, 0); \
59  SetZero (void *, _libX_##var##Ptr, NULL)
60#else /* else pcc concatenation */
61#define ZEROINIT(t,var,val) SetZero(t,var,val); \
62  SetZero (long, _libX_/**/var/**/Flag, 0); \
63  SetZero (void *, _libX_/**/var/**/Ptr, NULL)
64#endif /* concat ANSI C vs. pcc */
65
66#else /* else not ATTSHAREDLIB */
67/*
68 * no extra crud
69 */
70#define ZEROINIT(t,var,val) SetZero (t, var, val)
71
72#endif /* ATTSHAREDLIB */
73
74
75/*
76 * Error handlers; used to be in XlibInt.c
77 */
78ZEROINIT (XextErrorHandler, _XExtensionErrorFunction, NULL);
79
80/*
81 * NOTE: any additional external definition NEED
82 * to be inserted BELOW this point!!!
83 */
84
85/*
86 * NOTE: any additional external definition NEED
87 * to be inserted ABOVE this point!!!
88 */
89
90