5 /* Copyright (C) 1995,1996 Free Software Foundation, Inc.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this software; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307 USA
22 * As a special exception, the Free Software Foundation gives permission
23 * for additional uses of the text contained in its release of GUILE.
25 * The exception is that, if you link the GUILE library with other files
26 * to produce an executable, this does not by itself cause the
27 * resulting executable to be covered by the GNU General Public License.
28 * Your use of that executable is in no way restricted on account of
29 * linking the GUILE library code into it.
31 * This exception does not however invalidate any other reasons why
32 * the executable file might be covered by the GNU General Public License.
34 * This exception applies only to the code released by the
35 * Free Software Foundation under the name GUILE. If you copy
36 * code from other Free Software Foundation releases into a copy of
37 * GUILE, as the General Public License permits, the exception does
38 * not apply to the code that you add in this way. To avoid misleading
39 * anyone as to the status of such modified files, you must delete
40 * this exception notice from them.
42 * If you write modifications of your own for GUILE, it is your choice
43 * whether to permit this exception to apply to your modifications.
44 * If you do not wish that, delete this exception notice. */
47 #include "libguile/__scm.h"
51 typedef struct scm_cell
57 /* SCM_PTR_LT defines how to compare two SCM_CELLPTRs (which may not be in the
58 * same scm_array). SCM_CELLPTR is a pointer to a cons cell which may be
59 * compared or differenced. SCMPTR is used for stack bounds.
62 #if !defined(__TURBOC__) || defined(__TOS__)
64 typedef scm_cell
*SCM_CELLPTR
;
68 # define SCM_PTR_MASK 0xffffffffffff
69 # define SCM_PTR_LT(x, y) (((int)(x)&SCM_PTR_MASK) < ((int)(y)&SCM_PTR_MASK))
71 # define SCM_PTR_LT(x, y) ((x) < (y))
72 # endif /* def nosve */
74 #else /* defined(__TURBOC__) && !defined(__TOS__) */
77 typedef scm_cell
*SCM_CELLPTR
;
79 # define SCM_PTR_LT(x, y) (((long)(x)) < ((long)(y)))
81 typedef scm_cell huge
*SCM_CELLPTR
;
82 typedef SCM huge
*SCMPTR
;
83 # define SCM_PTR_LT(x, y) ((x) < (y))
84 # endif /* def PROT386 */
86 #endif /* defined(__TURBOC__) && !defined(__TOS__) */
88 #define SCM_PTR_GT(x, y) SCM_PTR_LT(y, x)
89 #define SCM_PTR_LE(x, y) (!SCM_PTR_GT(x, y))
90 #define SCM_PTR_GE(x, y) (!SCM_PTR_LT(x, y))
92 #define SCM_NULLP(x) (SCM_EOL == (x))
93 #define SCM_NNULLP(x) (SCM_EOL != (x))
101 #define SCM_CAR(x) (((scm_cell *)(SCM2PTR(x)))->car)
102 #define SCM_CDR(x) (((scm_cell *)(SCM2PTR(x)))->cdr)
103 #define SCM_GCCDR(x) (~1L & SCM_CDR(x))
104 #define SCM_SETCAR(x, v) (SCM_CAR(x) = (SCM)(v))
105 #define SCM_SETCDR(x, v) (SCM_CDR(x) = (SCM)(v))
107 #define SCM_CARLOC(x) (&SCM_CAR (x))
108 #define SCM_CDRLOC(x) (&SCM_CDR (x))
110 #define SCM_SETAND_CAR(x, y) (SCM_CAR (x) &= (y))
111 #define SCM_SETAND_CDR(x, y) (SCM_CDR (x) &= (y))
112 #define SCM_SETOR_CAR(x, y) (SCM_CAR (x) |= (y))
113 #define SCM_SETOR_CDR(x, y) (SCM_CDR (x) |= (y))
115 #define SCM_CAAR(OBJ) SCM_CAR (SCM_CAR (OBJ))
116 #define SCM_CDAR(OBJ) SCM_CDR (SCM_CAR (OBJ))
117 #define SCM_CADR(OBJ) SCM_CAR (SCM_CDR (OBJ))
118 #define SCM_CDDR(OBJ) SCM_CDR (SCM_CDR (OBJ))
120 #define SCM_CAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (OBJ)))
121 #define SCM_CDAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (OBJ)))
122 #define SCM_CADAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (OBJ)))
123 #define SCM_CDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (OBJ)))
124 #define SCM_CAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (OBJ)))
125 #define SCM_CDADR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (OBJ)))
126 #define SCM_CADDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (OBJ)))
127 #define SCM_CDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (OBJ)))
129 #define SCM_CAAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
130 #define SCM_CDAAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
131 #define SCM_CADAAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
132 #define SCM_CDDAAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
133 #define SCM_CAADAR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
134 #define SCM_CDADAR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
135 #define SCM_CADDAR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
136 #define SCM_CDDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
137 #define SCM_CAAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
138 #define SCM_CDAADR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
139 #define SCM_CADADR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
140 #define SCM_CDDADR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
141 #define SCM_CAADDR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
142 #define SCM_CDADDR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
143 #define SCM_CADDDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
144 #define SCM_CDDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
147 #ifdef DEBUG_FREELIST
148 #define SCM_NEWCELL(_into) (_into = scm_debug_newcell ())
150 #define SCM_NEWCELL(_into) \
152 if (SCM_IMP(scm_freelist)) \
153 _into = scm_gc_for_newcell();\
156 _into = scm_freelist; \
157 scm_freelist = SCM_CDR(scm_freelist);\
158 ++scm_cells_allocated; \
165 extern SCM scm_cons
SCM_P ((SCM x
, SCM y
));
166 extern SCM scm_cons2
SCM_P ((SCM w
, SCM x
, SCM y
));
167 extern SCM scm_pair_p
SCM_P ((SCM x
));
168 extern SCM scm_set_car_x
SCM_P ((SCM pair
, SCM value
));
169 extern SCM scm_set_cdr_x
SCM_P ((SCM pair
, SCM value
));
170 extern void scm_init_pairs
SCM_P ((void));