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142 lines
3.2 KiB
C
142 lines
3.2 KiB
C
/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* list manipulation */
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#include <stdio.h>
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#include <gh.h>
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/* returns the length of a list */
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unsigned long
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gh_list_length (SCM l)
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{
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return gh_scm2ulong (scm_list_length (l));
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}
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/* list operations */
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/* analogous to the Scheme cons operator */
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SCM
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gh_cons (SCM x, SCM y)
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{
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return scm_cons (x, y);
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}
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/* gh_list(SCM elt, ...) is implemented as a macro in gh.h. */
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/* analogous to the Scheme car operator */
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SCM
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gh_car (SCM x)
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{
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return SCM_CAR (x);
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}
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/* analogous to the Scheme cdr operator */
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SCM
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gh_cdr (SCM x)
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{
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return SCM_CDR (x);
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}
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/* now for the multiple car/cdr utility procedures */
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SCM
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gh_caar (SCM x)
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{
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return SCM_CAAR (x);
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}
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SCM
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gh_cadr (SCM x)
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{
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return SCM_CADR (x);
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}
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SCM
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gh_cdar (SCM x)
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{
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return SCM_CDAR (x);
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}
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SCM
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gh_cddr (SCM x)
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{
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return SCM_CDDR (x);
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}
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SCM
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gh_caaar (SCM x)
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{
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return SCM_CAAAR (x);
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}
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SCM
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gh_caadr (SCM x)
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{
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return SCM_CAADR (x);
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}
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SCM
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gh_cadar (SCM x)
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{
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return SCM_CADAR (x);
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}
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SCM
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gh_caddr (SCM x)
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{
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return SCM_CADDR (x);
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}
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SCM
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gh_cdaar (SCM x)
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{
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return SCM_CDAAR (x);
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}
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SCM
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gh_cdadr (SCM x)
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{
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return SCM_CDADR (x);
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}
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SCM
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gh_cddar (SCM x)
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{
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return SCM_CDDAR (x);
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}
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SCM
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gh_cdddr (SCM x)
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{
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return SCM_CDDDR (x);
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}
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