libguile/gh_funcs.c

   1 /*      Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
   2
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2, or (at your option)
   6  * any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this software; see the file COPYING.  If not, write to
  15  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  16  * Boston, MA 02111-1307 USA
  17  *
  18  * As a special exception, the Free Software Foundation gives permission
  19  * for additional uses of the text contained in its release of GUILE.
  20  *
  21  * The exception is that, if you link the GUILE library with other files
  22  * to produce an executable, this does not by itself cause the
  23  * resulting executable to be covered by the GNU General Public License.
  24  * Your use of that executable is in no way restricted on account of
  25  * linking the GUILE library code into it.
  26  *
  27  * This exception does not however invalidate any other reasons why
  28  * the executable file might be covered by the GNU General Public License.
  29  *
  30  * This exception applies only to the code released by the
  31  * Free Software Foundation under the name GUILE.  If you copy
  32  * code from other Free Software Foundation releases into a copy of
  33  * GUILE, as the General Public License permits, the exception does
  34  * not apply to the code that you add in this way.  To avoid misleading
  35  * anyone as to the status of such modified files, you must delete
  36  * this exception notice from them.
  37  *
  38  * If you write modifications of your own for GUILE, it is your choice
  39  * whether to permit this exception to apply to your modifications.
  40  * If you do not wish that, delete this exception notice.  */
  41 \f
  42
  43 \f
  44 /* Defining Scheme functions implemented by C functions --- subrs.  */
  45
  46 #include <stdio.h>
  47
  48 #include <gh.h>
  49
  50 /* allows you to define new scheme primitives written in C */
  51 SCM
  52 gh_new_procedure (char *proc_name, SCM (*fn) (),
  53                   int n_required_args, int n_optional_args, int varp)
  54 {
  55   return scm_make_gsubr (proc_name, n_required_args, n_optional_args,
  56                          varp, fn);
  57 }
  58
  59 SCM
  60 gh_new_procedure0_0 (char *proc_name, SCM (*fn) ())
  61 {
  62   return gh_new_procedure (proc_name, fn, 0, 0, 0);
  63 }
  64
  65 SCM
  66 gh_new_procedure0_1 (char *proc_name, SCM (*fn) ())
  67 {
  68   return gh_new_procedure (proc_name, fn, 0, 1, 0);
  69 }
  70
  71 SCM
  72 gh_new_procedure0_2 (char *proc_name, SCM (*fn) ())
  73 {
  74   return gh_new_procedure (proc_name, fn, 0, 2, 0);
  75 }
  76
  77 SCM
  78 gh_new_procedure1_0 (char *proc_name, SCM (*fn) ())
  79 {
  80   return gh_new_procedure (proc_name, fn, 1, 0, 0);
  81 }
  82
  83 SCM
  84 gh_new_procedure1_1 (char *proc_name, SCM (*fn) ())
  85 {
  86   return gh_new_procedure (proc_name, fn, 1, 1, 0);
  87 }
  88
  89 SCM
  90 gh_new_procedure1_2 (char *proc_name, SCM (*fn) ())
  91 {
  92   return gh_new_procedure (proc_name, fn, 1, 2, 0);
  93 }
  94
  95 SCM
  96 gh_new_procedure2_0 (char *proc_name, SCM (*fn) ())
  97 {
  98   return gh_new_procedure (proc_name, fn, 2, 0, 0);
  99 }
 100
 101 SCM
 102 gh_new_procedure2_1 (char *proc_name, SCM (*fn) ())
 103 {
 104   return gh_new_procedure (proc_name, fn, 2, 1, 0);
 105 }
 106
 107 SCM
 108 gh_new_procedure2_2 (char *proc_name, SCM (*fn) ())
 109 {
 110   return gh_new_procedure (proc_name, fn, 2, 2, 0);
 111 }
 112
 113 SCM
 114 gh_new_procedure3_0 (char *proc_name, SCM (*fn) ())
 115 {
 116   return gh_new_procedure (proc_name, fn, 3, 0, 0);
 117 }
 118
 119 SCM
 120 gh_new_procedure4_0 (char *proc_name, SCM (*fn) ())
 121 {
 122   return gh_new_procedure (proc_name, fn, 4, 0, 0);
 123 }
 124
 125 SCM
 126 gh_new_procedure5_0 (char *proc_name, SCM (*fn) ())
 127 {
 128   return gh_new_procedure (proc_name, fn, 5, 0, 0);
 129 }
 130
 131 /* some (possibly most) Scheme functions available from C */
 132 SCM
 133 gh_define (char *name, SCM val)
 134 {
 135   return scm_sysintern (name, val);
 136 }
 137
 138 \f
 139 /* Calling Scheme functions from C.  */
 140
 141 SCM
 142 gh_apply (SCM proc, SCM args)
 143 {
 144   return scm_apply (proc, args, SCM_EOL);
 145 }
 146
 147 SCM
 148 gh_call0 (SCM proc)
 149 {
 150   return scm_apply (proc, SCM_EOL, SCM_EOL);
 151 }
 152
 153 SCM
 154 gh_call1 (SCM proc, SCM arg)
 155 {
 156   return scm_apply (proc, arg, scm_listofnull);
 157 }
 158
 159 SCM
 160 gh_call2 (SCM proc, SCM arg1, SCM arg2)
 161 {
 162   return scm_apply (proc, arg1, scm_cons (arg2, scm_listofnull));
 163 }
 164
 165 SCM
 166 gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3)
 167 {
 168   return scm_apply (proc, arg1, scm_cons2 (arg2, arg3, scm_listofnull));
 169 }