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- /* classes: h_files */
-
- #ifndef PAIRSH
- #define PAIRSH
- /* Copyright (C) 1995,1996 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, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 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. */
-
-
- #include "libguile/__scm.h"
-
-
-
- typedef struct scm_cell
- {
- SCM car;
- SCM cdr;
- } scm_cell;
-
- /* SCM_PTR_LT defines how to compare two SCM_CELLPTRs (which may not be in the
- * same scm_array). SCM_CELLPTR is a pointer to a cons cell which may be
- * compared or differenced. SCMPTR is used for stack bounds.
- */
-
- #if !defined(__TURBOC__) || defined(__TOS__)
-
- typedef scm_cell *SCM_CELLPTR;
- typedef SCM *SCMPTR;
-
- # ifdef nosve
- # define SCM_PTR_MASK 0xffffffffffff
- # define SCM_PTR_LT(x, y) (((int)(x)&SCM_PTR_MASK) < ((int)(y)&SCM_PTR_MASK))
- # else
- # define SCM_PTR_LT(x, y) ((x) < (y))
- # endif /* def nosve */
-
- #else /* defined(__TURBOC__) && !defined(__TOS__) */
-
- # ifdef PROT386
- typedef scm_cell *SCM_CELLPTR;
- typedef SCM *SCMPTR;
- # define SCM_PTR_LT(x, y) (((long)(x)) < ((long)(y)))
- # else
- typedef scm_cell huge *SCM_CELLPTR;
- typedef SCM huge *SCMPTR;
- # define SCM_PTR_LT(x, y) ((x) < (y))
- # endif /* def PROT386 */
-
- #endif /* defined(__TURBOC__) && !defined(__TOS__) */
-
- #define SCM_PTR_GT(x, y) SCM_PTR_LT(y, x)
- #define SCM_PTR_LE(x, y) (!SCM_PTR_GT(x, y))
- #define SCM_PTR_GE(x, y) (!SCM_PTR_LT(x, y))
-
- #define SCM_NULLP(x) (SCM_EOL == (x))
- #define SCM_NNULLP(x) (SCM_EOL != (x))
-
-
-
-
- /* Cons Pairs
- */
-
- #define SCM_CAR(x) (((scm_cell *)(SCM2PTR(x)))->car)
- #define SCM_CDR(x) (((scm_cell *)(SCM2PTR(x)))->cdr)
- #define SCM_GCCDR(x) (~1L & SCM_CDR(x))
- #define SCM_SETCAR(x, v) (SCM_CAR(x) = (SCM)(v))
- #define SCM_SETCDR(x, v) (SCM_CDR(x) = (SCM)(v))
-
- #define SCM_CARLOC(x) (&SCM_CAR (x))
- #define SCM_CDRLOC(x) (&SCM_CDR (x))
-
- #define SCM_SETAND_CAR(x, y) (SCM_CAR (x) &= (y))
- #define SCM_SETAND_CDR(x, y) (SCM_CDR (x) &= (y))
- #define SCM_SETOR_CAR(x, y) (SCM_CAR (x) |= (y))
- #define SCM_SETOR_CDR(x, y) (SCM_CDR (x) |= (y))
-
- #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))))
-
-
- #ifdef DEBUG_FREELIST
- #define SCM_NEWCELL(_into) (scm_debug_newcell (&_into))
- #else
- #define SCM_NEWCELL(_into) \
- { \
- if (SCM_IMP(scm_freelist)) \
- _into = scm_gc_for_newcell();\
- else \
- { \
- _into = scm_freelist; \
- scm_freelist = SCM_CDR(scm_freelist);\
- ++scm_cells_allocated; \
- } \
- }
- #endif
-
-
-
- extern SCM scm_cons SCM_P ((SCM x, SCM y));
- extern SCM scm_cons2 SCM_P ((SCM w, SCM x, SCM y));
- extern SCM scm_pair_p SCM_P ((SCM x));
- extern SCM scm_set_car_x SCM_P ((SCM pair, SCM value));
- extern SCM scm_set_cdr_x SCM_P ((SCM pair, SCM value));
- extern void scm_init_pairs SCM_P ((void));
-
- #endif /* PAIRSH */
-