/* classes: h_files */

#ifndef SCM_PROCS_H
#define SCM_PROCS_H

/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009 Free Software Foundation, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */



#include "libguile/__scm.h"




/* Subrs 
 */

#define SCM_SUBR_META_INFO(x)  ((SCM *) SCM_CELL_WORD_3 (x))
#define SCM_SUBR_NAME(x) (SCM_SUBR_META_INFO (x) [0])
#define SCM_SUBRF(x) ((SCM (*)()) SCM_CELL_WORD_1 (x))
#define SCM_SUBR_PROPS(x) (SCM_SUBR_META_INFO (x) [1])
#define SCM_SUBR_GENERIC(x) ((SCM *) SCM_CELL_WORD_2 (x))
#define SCM_SET_SUBR_GENERIC(x, g) (*((SCM *) SCM_CELL_WORD_2 (x)) = (g))
#define SCM_SET_SUBR_GENERIC_LOC(x, g) (SCM_SET_CELL_WORD_2 (x, (scm_t_bits) g))

/* Return the most suitable subr type for a subr with REQ required arguments,
   OPT optional arguments, and REST (0 or 1) arguments.  This has to be in
   sync with `create_gsubr ()'.  */
#define SCM_SUBR_ARITY_TO_TYPE(req, opt, rest)				\
  (scm_tc7_gsubr | (SCM_GSUBR_MAKTYPE (req, opt, rest) << 8U))




SCM_API SCM scm_c_make_subr (const char *name, long type, SCM (*fcn)());
SCM_API SCM scm_c_make_subr_with_generic (const char *name, long type,
					  SCM (*fcn)(), SCM *gf);
SCM_API SCM scm_c_define_subr (const char *name, long type, SCM (*fcn)());
SCM_API SCM scm_c_define_subr_with_generic (const char *name, long type,
					    SCM (*fcn)(), SCM *gf);
SCM_API SCM scm_procedure_p (SCM obj);
SCM_API SCM scm_thunk_p (SCM obj);
SCM_API int scm_subr_p (SCM obj);
SCM_API SCM scm_procedure_documentation (SCM proc);
SCM_API SCM scm_procedure_with_setter_p (SCM obj);
SCM_API SCM scm_make_procedure_with_setter (SCM procedure, SCM setter);
SCM_API SCM scm_procedure (SCM proc);
SCM_API SCM scm_setter (SCM proc);
SCM_INTERNAL void scm_init_procs (void);

#endif  /* SCM_PROCS_H */

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/