libXext-1.0.2/src/globals.c

   1 /* $Xorg: globals.c,v 1.4 2001/02/09 02:03:50 xorgcvs Exp $ */
   2 /*
   3
   4 Copyright 1989, 1998  The Open Group
   5
   6 Permission to use, copy, modify, distribute, and sell this software and its
   7 documentation for any purpose is hereby granted without fee, provided that
   8 the above copyright notice appear in all copies and that both that
   9 copyright notice and this permission notice appear in supporting
  10 documentation.
  11
  12 The above copyright notice and this permission notice shall be included
  13 in all copies or substantial portions of the Software.
  14
  15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  18 IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 OTHER DEALINGS IN THE SOFTWARE.
  22
  23 Except as contained in this notice, the name of The Open Group shall
  24 not be used in advertising or otherwise to promote the sale, use or
  25 other dealings in this Software without prior written authorization
  26 from 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  */
  78 typedef int (*funcptr)();
  79 ZEROINIT (funcptr, _XExtensionErrorFunction, NULL);
  80
  81 /*
  82  * NOTE: any additional external definition NEED
  83  * to be inserted BELOW this point!!!
  84  */
  85
  86 /*
  87  * NOTE: any additional external definition NEED
  88  * to be inserted ABOVE this point!!!
  89  */
  90