/* 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 */