diff options
Diffstat (limited to 'libguile/gh_funcs.c')
-rw-r--r-- | libguile/gh_funcs.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/libguile/gh_funcs.c b/libguile/gh_funcs.c new file mode 100644 index 000000000..048ab209a --- /dev/null +++ b/libguile/gh_funcs.c @@ -0,0 +1,169 @@ +/* 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)); +} |