/* classes: h_files */ #ifndef SCM_PAIRS_H #define SCM_PAIRS_H /* Copyright (C) 1995,1996,2000,2001, 2004, 2006, 2008, 2009, 2010 Free Software Foundation, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA */ #include "libguile/__scm.h" #if (SCM_DEBUG_PAIR_ACCESSES == 1) # define SCM_VALIDATE_PAIR(cell, expr) \ ((!scm_is_pair (cell) ? scm_error_pair_access (cell), 0 : 0), (expr)) #else # define SCM_VALIDATE_PAIR(cell, expr) (expr) #endif /* * Use scm_is_null_and_not_nil if it's important (for correctness) * that #nil must NOT be considered null. */ #define scm_is_null_and_not_nil(x) (scm_is_eq ((x), SCM_EOL)) /* * Use scm_is_null_assume_not_nil if #nil will never be tested, * for increased efficiency. */ #define scm_is_null_assume_not_nil(x) (scm_is_eq ((x), SCM_EOL)) /* * See the comments preceeding the definitions of SCM_BOOL_F and * SCM_MATCHES_BITS_IN_COMMON in tags.h for more information on * how the following macro works. */ #define scm_is_null_or_nil(x) \ (SCM_MATCHES_BITS_IN_COMMON ((x), SCM_ELISP_NIL, SCM_EOL)) /* Older spellings for these null, nil, and pair predicates. */ #define SCM_NILP(x) (scm_is_eq ((x), SCM_ELISP_NIL)) #define SCM_NULL_OR_NIL_P(x) (scm_is_null_or_nil (x)) #define SCM_NULLP(x) (scm_is_null (x)) #define SCM_NNULLP(x) (!scm_is_null (x)) #define SCM_CONSP(x) (scm_is_pair (x)) #define SCM_NCONSP(x) (!SCM_CONSP (x)) /* #nil is null. */ #define scm_is_null(x) (scm_is_null_or_nil(x)) #define SCM_CAR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_0 (x))) #define SCM_CDR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_1 (x))) #define SCM_SETCAR(x, v) (SCM_VALIDATE_PAIR (x, SCM_SET_CELL_OBJECT_0 ((x), (v)))) #define SCM_SETCDR(x, v) (SCM_VALIDATE_PAIR (x, SCM_SET_CELL_OBJECT_1 ((x), (v)))) #define SCM_CAAR(OBJ) SCM_CAR (SCM_CAR (OBJ)) #define SCM_CDAR(OBJ) SCM_CDR (SCM_CAR (OBJ)) #define SCM_CADR(OBJ) SCM_CAR (SCM_CDR (OBJ)) #define SCM_CDDR(OBJ) SCM_CDR (SCM_CDR (OBJ)) #define SCM_CAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (OBJ))) #define SCM_CDAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (OBJ))) #define SCM_CADAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (OBJ))) #define SCM_CDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (OBJ))) #define SCM_CAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (OBJ))) #define SCM_CDADR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (OBJ))) #define SCM_CADDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (OBJ))) #define SCM_CDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (OBJ))) #define SCM_CAAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ)))) #define SCM_CDAAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ)))) #define SCM_CADAAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ)))) #define SCM_CDDAAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ)))) #define SCM_CAADAR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ)))) #define SCM_CDADAR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ)))) #define SCM_CADDAR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ)))) #define SCM_CDDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ)))) #define SCM_CAAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ)))) #define SCM_CDAADR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ)))) #define SCM_CADADR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ)))) #define SCM_CDDADR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ)))) #define SCM_CAADDR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ)))) #define SCM_CDADDR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ)))) #define SCM_CADDDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ)))) #define SCM_CDDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ)))) #if (SCM_DEBUG_PAIR_ACCESSES == 1) SCM_API void scm_error_pair_access (SCM); #endif SCM_API SCM scm_cons (SCM x, SCM y); SCM_API SCM scm_cons2 (SCM w, SCM x, SCM y); SCM_API SCM scm_pair_p (SCM x); SCM_API SCM scm_car (SCM x); SCM_API SCM scm_cdr (SCM x); SCM_API SCM scm_set_car_x (SCM pair, SCM value); SCM_API SCM scm_set_cdr_x (SCM pair, SCM value); SCM_API SCM scm_cddr (SCM x); SCM_API SCM scm_cdar (SCM x); SCM_API SCM scm_cadr (SCM x); SCM_API SCM scm_caar (SCM x); SCM_API SCM scm_cdddr (SCM x); SCM_API SCM scm_cddar (SCM x); SCM_API SCM scm_cdadr (SCM x); SCM_API SCM scm_cdaar (SCM x); SCM_API SCM scm_caddr (SCM x); SCM_API SCM scm_cadar (SCM x); SCM_API SCM scm_caadr (SCM x); SCM_API SCM scm_caaar (SCM x); SCM_API SCM scm_cddddr (SCM x); SCM_API SCM scm_cdddar (SCM x); SCM_API SCM scm_cddadr (SCM x); SCM_API SCM scm_cddaar (SCM x); SCM_API SCM scm_cdaddr (SCM x); SCM_API SCM scm_cdadar (SCM x); SCM_API SCM scm_cdaadr (SCM x); SCM_API SCM scm_cdaaar (SCM x); SCM_API SCM scm_cadddr (SCM x); SCM_API SCM scm_caddar (SCM x); SCM_API SCM scm_cadadr (SCM x); SCM_API SCM scm_cadaar (SCM x); SCM_API SCM scm_caaddr (SCM x); SCM_API SCM scm_caadar (SCM x); SCM_API SCM scm_caaadr (SCM x); SCM_API SCM scm_caaaar (SCM x); SCM_INTERNAL void scm_init_pairs (void); #endif /* SCM_PAIRS_H */ /* Local Variables: c-file-style: "gnu" End: */