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1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | #include <stdio.h> | |
43 | #include "_scm.h" | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
0f2d19dd JB |
47 | /* {Pairs} |
48 | */ | |
49 | ||
50 | SCM_PROC(s_cons, "cons", 2, 0, 0, scm_cons); | |
1cc91f1b | 51 | |
0f2d19dd JB |
52 | SCM |
53 | scm_cons (x, y) | |
54 | SCM x; | |
55 | SCM y; | |
0f2d19dd JB |
56 | { |
57 | register SCM z; | |
58 | SCM_NEWCELL (z); | |
a6c64c3c MD |
59 | SCM_SETCAR (z, x); |
60 | SCM_SETCDR (z, y); | |
0f2d19dd JB |
61 | return z; |
62 | } | |
63 | ||
1cc91f1b | 64 | |
0f2d19dd JB |
65 | SCM |
66 | scm_cons2 (w, x, y) | |
67 | SCM w; | |
68 | SCM x; | |
69 | SCM y; | |
0f2d19dd JB |
70 | { |
71 | register SCM z; | |
72 | SCM_NEWCELL (z); | |
a6c64c3c MD |
73 | SCM_SETCAR (z, x); |
74 | SCM_SETCDR (z, y); | |
0f2d19dd JB |
75 | x = z; |
76 | SCM_NEWCELL (z); | |
a6c64c3c MD |
77 | SCM_SETCAR (z, w); |
78 | SCM_SETCDR (z, x); | |
0f2d19dd JB |
79 | return z; |
80 | } | |
81 | ||
82 | ||
83 | SCM_PROC(s_pair_p, "pair?", 1, 0, 0, scm_pair_p); | |
1cc91f1b | 84 | |
0f2d19dd JB |
85 | SCM |
86 | scm_pair_p(x) | |
87 | SCM x; | |
0f2d19dd JB |
88 | { |
89 | if SCM_IMP(x) return SCM_BOOL_F; | |
90 | return SCM_CONSP(x) ? SCM_BOOL_T : SCM_BOOL_F; | |
91 | } | |
92 | ||
93 | SCM_PROC(s_set_car_x, "set-car!", 2, 0, 0, scm_set_car_x); | |
1cc91f1b | 94 | |
0f2d19dd JB |
95 | SCM |
96 | scm_set_car_x(pair, value) | |
97 | SCM pair; | |
98 | SCM value; | |
0f2d19dd JB |
99 | { |
100 | SCM_ASSERT(SCM_NIMP(pair) && SCM_CONSP(pair), pair, SCM_ARG1, s_set_car_x); | |
a6c64c3c | 101 | SCM_SETCAR (pair, value); |
0f2d19dd JB |
102 | return value; |
103 | } | |
104 | ||
105 | SCM_PROC(s_set_cdr_x, "set-cdr!", 2, 0, 0, scm_set_cdr_x); | |
1cc91f1b | 106 | |
0f2d19dd JB |
107 | SCM |
108 | scm_set_cdr_x(pair, value) | |
109 | SCM pair; | |
110 | SCM value; | |
0f2d19dd JB |
111 | { |
112 | SCM_ASSERT(SCM_NIMP(pair) && SCM_CONSP(pair), pair, SCM_ARG1, s_set_cdr_x); | |
a6c64c3c | 113 | SCM_SETCDR (pair, value); |
0f2d19dd JB |
114 | return value; |
115 | } | |
116 | ||
117 | ||
118 | \f | |
119 | ||
120 | static scm_iproc cxrs[] = | |
121 | { | |
122 | {"car", 0}, | |
123 | {"cdr", 0}, | |
124 | {"caar", 0}, | |
125 | {"cadr", 0}, | |
126 | {"cdar", 0}, | |
127 | {"cddr", 0}, | |
128 | {"caaar", 0}, | |
129 | {"caadr", 0}, | |
130 | {"cadar", 0}, | |
131 | {"caddr", 0}, | |
132 | {"cdaar", 0}, | |
133 | {"cdadr", 0}, | |
134 | {"cddar", 0}, | |
135 | {"cdddr", 0}, | |
136 | {"caaaar", 0}, | |
137 | {"caaadr", 0}, | |
138 | {"caadar", 0}, | |
139 | {"caaddr", 0}, | |
140 | {"cadaar", 0}, | |
141 | {"cadadr", 0}, | |
142 | {"caddar", 0}, | |
143 | {"cadddr", 0}, | |
144 | {"cdaaar", 0}, | |
145 | {"cdaadr", 0}, | |
146 | {"cdadar", 0}, | |
147 | {"cdaddr", 0}, | |
148 | {"cddaar", 0}, | |
149 | {"cddadr", 0}, | |
150 | {"cdddar", 0}, | |
151 | {"cddddr", 0}, | |
152 | {0, 0} | |
153 | }; | |
154 | ||
155 | \f | |
1cc91f1b | 156 | |
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157 | void |
158 | scm_init_pairs () | |
0f2d19dd JB |
159 | { |
160 | scm_init_iprocs(cxrs, scm_tc7_cxr); | |
161 | #include "pairs.x" | |
162 | } | |
163 |