libguile/gh_funcs.c

   1 /*      Copyright (C) 1995,1996,1997,1998, 2000 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 "libguile/gh.h"
  47
  48 /* allows you to define new scheme primitives written in C */
  49 SCM
  50 gh_new_procedure (const char *proc_name, SCM (*fn) (),
  51                   int n_required_args, int n_optional_args, int varp)
  52 {
  53   return scm_c_define_gsubr (proc_name, n_required_args, n_optional_args,
  54                              varp, fn);
  55 }
  56
  57 SCM
  58 gh_new_procedure0_0 (const char *proc_name, SCM (*fn) ())
  59 {
  60   return gh_new_procedure (proc_name, fn, 0, 0, 0);
  61 }
  62
  63 SCM
  64 gh_new_procedure0_1 (const char *proc_name, SCM (*fn) ())
  65 {
  66   return gh_new_procedure (proc_name, fn, 0, 1, 0);
  67 }
  68
  69 SCM
  70 gh_new_procedure0_2 (const char *proc_name, SCM (*fn) ())
  71 {
  72   return gh_new_procedure (proc_name, fn, 0, 2, 0);
  73 }
  74
  75 SCM
  76 gh_new_procedure1_0 (const char *proc_name, SCM (*fn) ())
  77 {
  78   return gh_new_procedure (proc_name, fn, 1, 0, 0);
  79 }
  80
  81 SCM
  82 gh_new_procedure1_1 (const char *proc_name, SCM (*fn) ())
  83 {
  84   return gh_new_procedure (proc_name, fn, 1, 1, 0);
  85 }
  86
  87 SCM
  88 gh_new_procedure1_2 (const char *proc_name, SCM (*fn) ())
  89 {
  90   return gh_new_procedure (proc_name, fn, 1, 2, 0);
  91 }
  92
  93 SCM
  94 gh_new_procedure2_0 (const char *proc_name, SCM (*fn) ())
  95 {
  96   return gh_new_procedure (proc_name, fn, 2, 0, 0);
  97 }
  98
  99 SCM
 100 gh_new_procedure2_1 (const char *proc_name, SCM (*fn) ())
 101 {
 102   return gh_new_procedure (proc_name, fn, 2, 1, 0);
 103 }
 104
 105 SCM
 106 gh_new_procedure2_2 (const char *proc_name, SCM (*fn) ())
 107 {
 108   return gh_new_procedure (proc_name, fn, 2, 2, 0);
 109 }
 110
 111 SCM
 112 gh_new_procedure3_0 (const char *proc_name, SCM (*fn) ())
 113 {
 114   return gh_new_procedure (proc_name, fn, 3, 0, 0);
 115 }
 116
 117 SCM
 118 gh_new_procedure4_0 (const char *proc_name, SCM (*fn) ())
 119 {
 120   return gh_new_procedure (proc_name, fn, 4, 0, 0);
 121 }
 122
 123 SCM
 124 gh_new_procedure5_0 (const char *proc_name, SCM (*fn) ())
 125 {
 126   return gh_new_procedure (proc_name, fn, 5, 0, 0);
 127 }
 128
 129 /* some (possibly most) Scheme functions available from C */
 130 SCM
 131 gh_define (const char *name, SCM val)
 132 {
 133   scm_c_define (name, val);
 134   return SCM_UNSPECIFIED;
 135 }
 136
 137 \f
 138 /* Calling Scheme functions from C.  */
 139
 140 SCM
 141 gh_apply (SCM proc, SCM args)
 142 {
 143   return scm_apply (proc, args, SCM_EOL);
 144 }
 145
 146 SCM
 147 gh_call0 (SCM proc)
 148 {
 149   return scm_apply (proc, SCM_EOL, SCM_EOL);
 150 }
 151
 152 SCM
 153 gh_call1 (SCM proc, SCM arg)
 154 {
 155   return scm_apply (proc, arg, scm_listofnull);
 156 }
 157
 158 SCM
 159 gh_call2 (SCM proc, SCM arg1, SCM arg2)
 160 {
 161   return scm_apply (proc, arg1, scm_cons (arg2, scm_listofnull));
 162 }
 163
 164 SCM
 165 gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3)
 166 {
 167   return scm_apply (proc, arg1, scm_cons2 (arg2, arg3, scm_listofnull));
 168 }
 169
 170 /*
 171   Local Variables:
 172   c-file-style: "gnu"
 173   End:
 174 */