libguile/gsubr.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_GSUBR_H
   4 #define SCM_GSUBR_H
   5
   6 /* Copyright (C) 1995,1996,1998,2000,2001 Free Software Foundation, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this software; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  21  * Boston, MA 02111-1307 USA
  22  *
  23  * As a special exception, the Free Software Foundation gives permission
  24  * for additional uses of the text contained in its release of GUILE.
  25  *
  26  * The exception is that, if you link the GUILE library with other files
  27  * to produce an executable, this does not by itself cause the
  28  * resulting executable to be covered by the GNU General Public License.
  29  * Your use of that executable is in no way restricted on account of
  30  * linking the GUILE library code into it.
  31  *
  32  * This exception does not however invalidate any other reasons why
  33  * the executable file might be covered by the GNU General Public License.
  34  *
  35  * This exception applies only to the code released by the
  36  * Free Software Foundation under the name GUILE.  If you copy
  37  * code from other Free Software Foundation releases into a copy of
  38  * GUILE, as the General Public License permits, the exception does
  39  * not apply to the code that you add in this way.  To avoid misleading
  40  * anyone as to the status of such modified files, you must delete
  41  * this exception notice from them.
  42  *
  43  * If you write modifications of your own for GUILE, it is your choice
  44  * whether to permit this exception to apply to your modifications.
  45  * If you do not wish that, delete this exception notice.  */
  46
  47 \f
  48
  49 #include "libguile/__scm.h"
  50
  51 \f
  52
  53 #define SCM_GSUBR_MAKTYPE(req, opt, rst) ((req)|((opt)<<4)|((rst)<<8))
  54 #define SCM_GSUBR_REQ(x) ((long)(x)&0xf)
  55 #define SCM_GSUBR_OPT(x) (((long)(x)&0xf0)>>4)
  56 #define SCM_GSUBR_REST(x) ((long)(x)>>8)
  57
  58 #define SCM_GSUBR_MAX 10
  59 #define SCM_GSUBR_TYPE(cclo) (SCM_CCLO_REF ((cclo), 1))
  60 #define SCM_SET_GSUBR_TYPE(cclo, type) (SCM_CCLO_SET ((cclo), 1, (type)))
  61 #define SCM_GSUBR_PROC(cclo) (SCM_CCLO_REF ((cclo), 2))
  62 #define SCM_SET_GSUBR_PROC(cclo, proc) (SCM_CCLO_SET ((cclo), 2, (proc)))
  63
  64 extern SCM scm_f_gsubr_apply;
  65
  66 extern SCM scm_c_make_gsubr (const char *name,
  67                              int req, int opt, int rst, SCM (*fcn) ());
  68 extern SCM scm_c_make_gsubr_with_generic (const char *name,
  69                                           int req, int opt, int rst,
  70                                           SCM (*fcn) (), SCM *gf);
  71 extern SCM scm_c_define_gsubr (const char *name,
  72                                int req, int opt, int rst, SCM (*fcn) ());
  73 extern SCM scm_c_define_gsubr_with_generic (const char *name,
  74                                             int req, int opt, int rst,
  75                                             SCM (*fcn) (), SCM *gf);
  76
  77 extern SCM scm_gsubr_apply (SCM args);
  78 extern void scm_init_gsubr (void);
  79
  80 #endif  /* SCM_GSUBR_H */
  81
  82 /*
  83   Local Variables:
  84   c-file-style: "gnu"
  85   End:
  86 */