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, 2006, 2008, 2009 Free Software Foundation, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library 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 GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 \f
  24
  25 #include "libguile/__scm.h"
  26
  27 \f
  28
  29 /* Return an integer describing the arity of GSUBR, a subr of type
  30    `scm_tc7_gsubr'.  The result can be interpreted with `SCM_GSUBR_REQ ()'
  31    and similar.  */
  32 #define SCM_GSUBR_TYPE(gsubr)  (SCM_CELL_TYPE (gsubr) >> 8)
  33
  34 #define SCM_GSUBR_MAKTYPE(req, opt, rst) ((req)|((opt)<<4)|((rst)<<8))
  35 #define SCM_GSUBR_MAX    33
  36 #define SCM_GSUBR_REQ(x) ((long)(x)&0xf)
  37 #define SCM_GSUBR_OPT(x) (((long)(x)&0xf0)>>4)
  38 #define SCM_GSUBR_REST(x) ((long)(x)>>8)
  39
  40 SCM_API SCM scm_c_make_gsubr (const char *name,
  41                               int req, int opt, int rst, SCM (*fcn) ());
  42 SCM_API SCM scm_c_make_gsubr_with_generic (const char *name,
  43                                            int req, int opt, int rst,
  44                                            SCM (*fcn) (), SCM *gf);
  45 SCM_API SCM scm_c_define_gsubr (const char *name,
  46                                 int req, int opt, int rst, SCM (*fcn) ());
  47 SCM_API SCM scm_c_define_gsubr_with_generic (const char *name,
  48                                              int req, int opt, int rst,
  49                                              SCM (*fcn) (), SCM *gf);
  50
  51 SCM_INTERNAL SCM scm_i_gsubr_apply (SCM proc, SCM arg, ...);
  52 SCM_INTERNAL SCM scm_i_gsubr_apply_list (SCM proc, SCM args);
  53 SCM_INTERNAL void scm_init_gsubr (void);
  54
  55 #endif  /* SCM_GSUBR_H */
  56
  57 /*
  58   Local Variables:
  59   c-file-style: "gnu"
  60   End:
  61 */