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(SCM_SRS): Cast shiftee to scm_signed_bits_t.
[bpt/guile.git] / libguile / pairs.h
CommitLineData
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JB		 1/* classes: h_files */
2
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DH		 3#ifndef SCM_PAIRS_H
4#define SCM_PAIRS_H
5/* Copyright (C) 1995,1996,2000,2001 Free Software Foundation, Inc.
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JB		 6 *
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)
10 * any later version.
11 *
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.
16 *
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
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JB		 19 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307 USA
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JB		 21 *
22 * As a special exception, the Free Software Foundation gives permission
23 * for additional uses of the text contained in its release of GUILE.
24 *
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.
30 *
31 * This exception does not however invalidate any other reasons why
32 * the executable file might be covered by the GNU General Public License.
33 *
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.
41 *
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.
82892bed 44 * If you do not wish that, delete this exception notice. */
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GB		 45
46/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
47 gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
48
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JB		 49\f
50
b4309c3c 51#include "libguile/__scm.h"
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JB		 52
53\f
54
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DH		 55#if (SCM_DEBUG_PAIR_ACCESSES == 1)
56# include "libguile/struct.h"
57# define SCM_VALIDATE_PAIR(cell, expr) \
58 ((!SCM_ECONSP (cell) ? scm_error_pair_access (cell), 0 : 0), (expr))
59#else
60# define SCM_VALIDATE_PAIR(cell, expr) (expr)
61#endif
62
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DH		 63#define SCM_NULLP(x) (SCM_EQ_P ((x), SCM_EOL))
64#define SCM_NNULLP(x) (!SCM_NULLP (x))
0f2d19dd 65
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DH		 66#define SCM_CAR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_0 (x)))
67#define SCM_CDR(x) (SCM_VALIDATE_PAIR (x, SCM_CELL_OBJECT_1 (x)))
76a369d9 68
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DH		 69#define SCM_SETCAR(x, v) (SCM_VALIDATE_PAIR (x, SCM_SET_CELL_OBJECT_0 ((x), (v))))
70#define SCM_SETCDR(x, v) (SCM_VALIDATE_PAIR (x, SCM_SET_CELL_OBJECT_1 ((x), (v))))
24e68a57 71
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JB		 72#define SCM_CAAR(OBJ) SCM_CAR (SCM_CAR (OBJ))
73#define SCM_CDAR(OBJ) SCM_CDR (SCM_CAR (OBJ))
74#define SCM_CADR(OBJ) SCM_CAR (SCM_CDR (OBJ))
75#define SCM_CDDR(OBJ) SCM_CDR (SCM_CDR (OBJ))
76
77#define SCM_CAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (OBJ)))
78#define SCM_CDAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (OBJ)))
79#define SCM_CADAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (OBJ)))
80#define SCM_CDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (OBJ)))
81#define SCM_CAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (OBJ)))
82#define SCM_CDADR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (OBJ)))
83#define SCM_CADDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (OBJ)))
84#define SCM_CDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (OBJ)))
85
86#define SCM_CAAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
87#define SCM_CDAAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
88#define SCM_CADAAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
89#define SCM_CDDAAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
90#define SCM_CAADAR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
91#define SCM_CDADAR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
92#define SCM_CADDAR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
93#define SCM_CDDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
94#define SCM_CAAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
95#define SCM_CDAADR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
96#define SCM_CADADR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
97#define SCM_CDDADR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
98#define SCM_CAADDR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
99#define SCM_CDADDR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
100#define SCM_CADDDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
101#define SCM_CDDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
102
0f2d19dd 103\f
1cc91f1b 104
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DH		 105#if (SCM_DEBUG_PAIR_ACCESSES == 1)
106extern void scm_error_pair_access (SCM) SCM_NORETURN;
107#endif
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GB		 108extern SCM scm_cons (SCM x, SCM y);
109extern SCM scm_cons2 (SCM w, SCM x, SCM y);
110extern SCM scm_pair_p (SCM x);
111extern SCM scm_set_car_x (SCM pair, SCM value);
112extern SCM scm_set_cdr_x (SCM pair, SCM value);
113extern void scm_init_pairs (void);
1cc91f1b 114
e81d98ec 115#endif /* SCM_PAIRS_H */
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ML		 116
117/*
118 Local Variables:
119 c-file-style: "gnu"
120 End:
121*/
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