libguile/gh_funcs.c

   1 /*      Copyright (C) 1995,1996,1997,1998, 2000, 2001 Free Software Foundation, Inc.
   2
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2.1 of the License, or (at your option) any later version.
   7  *
   8  * This library 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 GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16  */
  17 \f
  18
  19 \f
  20 /* Defining Scheme functions implemented by C functions --- subrs.  */
  21
  22 #include "libguile/gh.h"
  23
  24 /* allows you to define new scheme primitives written in C */
  25 SCM
  26 gh_new_procedure (const char *proc_name, SCM (*fn) (),
  27                   int n_required_args, int n_optional_args, int varp)
  28 {
  29   return scm_c_define_gsubr (proc_name, n_required_args, n_optional_args,
  30                              varp, fn);
  31 }
  32
  33 SCM
  34 gh_new_procedure0_0 (const char *proc_name, SCM (*fn) ())
  35 {
  36   return gh_new_procedure (proc_name, fn, 0, 0, 0);
  37 }
  38
  39 SCM
  40 gh_new_procedure0_1 (const char *proc_name, SCM (*fn) ())
  41 {
  42   return gh_new_procedure (proc_name, fn, 0, 1, 0);
  43 }
  44
  45 SCM
  46 gh_new_procedure0_2 (const char *proc_name, SCM (*fn) ())
  47 {
  48   return gh_new_procedure (proc_name, fn, 0, 2, 0);
  49 }
  50
  51 SCM
  52 gh_new_procedure1_0 (const char *proc_name, SCM (*fn) ())
  53 {
  54   return gh_new_procedure (proc_name, fn, 1, 0, 0);
  55 }
  56
  57 SCM
  58 gh_new_procedure1_1 (const char *proc_name, SCM (*fn) ())
  59 {
  60   return gh_new_procedure (proc_name, fn, 1, 1, 0);
  61 }
  62
  63 SCM
  64 gh_new_procedure1_2 (const char *proc_name, SCM (*fn) ())
  65 {
  66   return gh_new_procedure (proc_name, fn, 1, 2, 0);
  67 }
  68
  69 SCM
  70 gh_new_procedure2_0 (const char *proc_name, SCM (*fn) ())
  71 {
  72   return gh_new_procedure (proc_name, fn, 2, 0, 0);
  73 }
  74
  75 SCM
  76 gh_new_procedure2_1 (const char *proc_name, SCM (*fn) ())
  77 {
  78   return gh_new_procedure (proc_name, fn, 2, 1, 0);
  79 }
  80
  81 SCM
  82 gh_new_procedure2_2 (const char *proc_name, SCM (*fn) ())
  83 {
  84   return gh_new_procedure (proc_name, fn, 2, 2, 0);
  85 }
  86
  87 SCM
  88 gh_new_procedure3_0 (const char *proc_name, SCM (*fn) ())
  89 {
  90   return gh_new_procedure (proc_name, fn, 3, 0, 0);
  91 }
  92
  93 SCM
  94 gh_new_procedure4_0 (const char *proc_name, SCM (*fn) ())
  95 {
  96   return gh_new_procedure (proc_name, fn, 4, 0, 0);
  97 }
  98
  99 SCM
 100 gh_new_procedure5_0 (const char *proc_name, SCM (*fn) ())
 101 {
 102   return gh_new_procedure (proc_name, fn, 5, 0, 0);
 103 }
 104
 105 /* some (possibly most) Scheme functions available from C */
 106 SCM
 107 gh_define (const char *name, SCM val)
 108 {
 109   scm_c_define (name, val);
 110   return SCM_UNSPECIFIED;
 111 }
 112
 113 \f
 114 /* Calling Scheme functions from C.  */
 115
 116 SCM
 117 gh_apply (SCM proc, SCM args)
 118 {
 119   return scm_apply (proc, args, SCM_EOL);
 120 }
 121
 122 SCM
 123 gh_call0 (SCM proc)
 124 {
 125   return scm_apply (proc, SCM_EOL, SCM_EOL);
 126 }
 127
 128 SCM
 129 gh_call1 (SCM proc, SCM arg)
 130 {
 131   return scm_apply (proc, arg, scm_listofnull);
 132 }
 133
 134 SCM
 135 gh_call2 (SCM proc, SCM arg1, SCM arg2)
 136 {
 137   return scm_apply (proc, arg1, scm_cons (arg2, scm_listofnull));
 138 }
 139
 140 SCM
 141 gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3)
 142 {
 143   return scm_apply (proc, arg1, scm_cons2 (arg2, arg3, scm_listofnull));
 144 }
 145
 146 /*
 147   Local Variables:
 148   c-file-style: "gnu"
 149   End:
 150 */