libguile/smob.h

   1 /* classes: h_files */
   2
   3 #ifndef SMOBH
   4 #define SMOBH
   5 /*      Copyright (C) 1995,1996 Free Software Foundation, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this software; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * As a special exception, the Free Software Foundation gives permission
  22  * for additional uses of the text contained in its release of GUILE.
  23  *
  24  * The exception is that, if you link the GUILE library with other files
  25  * to produce an executable, this does not by itself cause the
  26  * resulting executable to be covered by the GNU General Public License.
  27  * Your use of that executable is in no way restricted on account of
  28  * linking the GUILE library code into it.
  29  *
  30  * This exception does not however invalidate any other reasons why
  31  * the executable file might be covered by the GNU General Public License.
  32  *
  33  * This exception applies only to the code released by the
  34  * Free Software Foundation under the name GUILE.  If you copy
  35  * code from other Free Software Foundation releases into a copy of
  36  * GUILE, as the General Public License permits, the exception does
  37  * not apply to the code that you add in this way.  To avoid misleading
  38  * anyone as to the status of such modified files, you must delete
  39  * this exception notice from them.
  40  *
  41  * If you write modifications of your own for GUILE, it is your choice
  42  * whether to permit this exception to apply to your modifications.
  43  * If you do not wish that, delete this exception notice.
  44  */
  45 \f
  46 #include "libguile/__scm.h"
  47 #include "print.h"
  48
  49 \f
  50 typedef struct scm_smobfuns
  51 {
  52   SCM (*mark) SCM_P ((SCM));
  53   scm_sizet (*free) SCM_P ((SCM));
  54   int (*print) SCM_P ((SCM exp, SCM port, scm_print_state *pstate));
  55   SCM (*equalp) SCM_P ((SCM, SCM));
  56 } scm_smobfuns;
  57
  58 \f
  59
  60 #define SCM_SMOBNUM(x) (0x0ff & (SCM_CAR(x)>>8));
  61 #define SCM_PTOBNUM(x) (0x0ff & (SCM_CAR(x)>>8));
  62
  63 extern scm_sizet scm_numsmob;
  64 extern scm_smobfuns *scm_smobs;
  65
  66 \f
  67
  68 /* Everyone who uses smobs needs to print.  */
  69 #include "libguile/ports.h"
  70 #include "libguile/genio.h"
  71 #include "libguile/print.h"
  72
  73 /* ... and they all need to GC.  */
  74 #include "libguile/markers.h"
  75
  76 \f
  77 extern long scm_newsmob SCM_P ((scm_smobfuns *smob));
  78 extern void scm_smob_prehistory SCM_P ((void));
  79
  80 #endif  /* SMOBH */