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-rw-r--r--libguile/gh_funcs.c169
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diff --git a/libguile/gh_funcs.c b/libguile/gh_funcs.c
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+/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
+
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * As a special exception, the Free Software Foundation gives permission
+ * for additional uses of the text contained in its release of GUILE.
+ *
+ * The exception is that, if you link the GUILE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * Your use of that executable is in no way restricted on account of
+ * linking the GUILE library code into it.
+ *
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ *
+ * This exception applies only to the code released by the
+ * Free Software Foundation under the name GUILE. If you copy
+ * code from other Free Software Foundation releases into a copy of
+ * GUILE, as the General Public License permits, the exception does
+ * not apply to the code that you add in this way. To avoid misleading
+ * anyone as to the status of such modified files, you must delete
+ * this exception notice from them.
+ *
+ * If you write modifications of your own for GUILE, it is your choice
+ * whether to permit this exception to apply to your modifications.
+ * If you do not wish that, delete this exception notice.
+ */
+
+
+
+/* Defining Scheme functions implemented by C functions --- subrs. */
+
+#include <stdio.h>
+
+#include <gh.h>
+
+/* allows you to define new scheme primitives written in C */
+SCM
+gh_new_procedure (char *proc_name, SCM (*fn) (),
+ int n_required_args, int n_optional_args, int varp)
+{
+ return scm_make_gsubr (proc_name, n_required_args, n_optional_args,
+ varp, fn);
+}
+
+SCM
+gh_new_procedure0_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 0, 0, 0);
+}
+
+SCM
+gh_new_procedure0_1 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 0, 1, 0);
+}
+
+SCM
+gh_new_procedure0_2 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 0, 2, 0);
+}
+
+SCM
+gh_new_procedure1_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 1, 0, 0);
+}
+
+SCM
+gh_new_procedure1_1 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 1, 1, 0);
+}
+
+SCM
+gh_new_procedure1_2 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 1, 2, 0);
+}
+
+SCM
+gh_new_procedure2_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 2, 0, 0);
+}
+
+SCM
+gh_new_procedure2_1 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 2, 1, 0);
+}
+
+SCM
+gh_new_procedure2_2 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 2, 2, 0);
+}
+
+SCM
+gh_new_procedure3_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 3, 0, 0);
+}
+
+SCM
+gh_new_procedure4_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 4, 0, 0);
+}
+
+SCM
+gh_new_procedure5_0 (char *proc_name, SCM (*fn) ())
+{
+ return gh_new_procedure (proc_name, fn, 5, 0, 0);
+}
+
+/* some (possibly most) Scheme functions available from C */
+SCM
+gh_define (char *name, SCM val)
+{
+ return scm_sysintern (name, val);
+}
+
+
+/* Calling Scheme functions from C. */
+
+SCM
+gh_apply (SCM proc, SCM args)
+{
+ return scm_apply (proc, args, SCM_EOL);
+}
+
+SCM
+gh_call0 (SCM proc)
+{
+ return scm_apply (proc, SCM_EOL, SCM_EOL);
+}
+
+SCM
+gh_call1 (SCM proc, SCM arg)
+{
+ return scm_apply (proc, arg, scm_listofnull);
+}
+
+SCM
+gh_call2 (SCM proc, SCM arg1, SCM arg2)
+{
+ return scm_apply (proc, arg1, scm_cons (arg2, scm_listofnull));
+}
+
+SCM
+gh_call3 (SCM proc, SCM arg1, SCM arg2, SCM arg3)
+{
+ return scm_apply (proc, arg1, scm_cons2 (arg2, arg3, scm_listofnull));
+}