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1 | /* classes: h_files */ |
2 | ||
22a52da1 DH |
3 | #ifndef SCM_VARIABLE_H |
4 | #define SCM_VARIABLE_H | |
5 | /* Copyright (C) 1995,1996,2000,2001 Free Software Foundation, Inc. | |
0f2d19dd 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 | |
82892bed JB |
19 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
20 | * Boston, MA 02111-1307 USA | |
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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. */ |
d3a6bc94 | 45 | |
0f2d19dd | 46 | \f |
b4309c3c | 47 | #include "libguile/__scm.h" |
86d31dfe | 48 | #include "libguile/smob.h" |
0f2d19dd JB |
49 | |
50 | \f | |
51 | ||
52 | ||
53 | /* Variables | |
54 | */ | |
dbf5dfb3 | 55 | #define SCM_VARIABLEP(X) (SCM_NIMP(X) && SCM_TYP7(X) == scm_tc7_variable) |
86d31dfe MV |
56 | |
57 | #if !SCM_ENABLE_VCELLS | |
58 | #define SCM_VARIABLE_REF(V) SCM_CELL_OBJECT_1(V) | |
59 | #define SCM_VARIABLE_SET(V,X) SCM_SET_CELL_OBJECT_1 (V, X) | |
60 | #define SCM_VARIABLE_LOC(V) ((SCM *) SCM_CELL_WORD_LOC ((V), 1)) | |
61 | #else | |
62 | #define SCM_VARVCELL(V) SCM_CELL_OBJECT_1(V) | |
63 | #define SCM_UDVARIABLEP(X) (SCM_VARIABLEP(X) && SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (X)))) | |
64 | #define SCM_DEFVARIABLEP(X) (SCM_VARIABLEP(X) && !SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (X)))) | |
65 | ||
66 | #define SCM_VARIABLE_REF(V) SCM_CDR(SCM_VARVCELL(V)) | |
67 | #define SCM_VARIABLE_SET(V,X) SCM_SETCDR(SCM_VARVCELL(V),X) | |
68 | #define SCM_VARIABLE_LOC(V) SCM_CDRLOC(SCM_VARVCELL(V)) | |
69 | #endif | |
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70 | |
71 | \f | |
0f2d19dd | 72 | |
86d31dfe MV |
73 | extern SCM scm_make_variable (SCM init); |
74 | extern SCM scm_make_undefined_variable (void); | |
7866a09b GB |
75 | extern SCM scm_variable_p (SCM obj); |
76 | extern SCM scm_variable_ref (SCM var); | |
77 | extern SCM scm_variable_set_x (SCM var, SCM val); | |
7866a09b | 78 | extern SCM scm_variable_bound_p (SCM var); |
86d31dfe MV |
79 | extern SCM scm_variable_set_name_hint (SCM var, SCM hint); |
80 | #if SCM_ENABLE_VCELLS | |
81 | extern SCM scm_builtin_variable (SCM name); | |
82 | #endif | |
83 | ||
dbf5dfb3 MV |
84 | extern void scm_i_variable_print (SCM var, SCM port, scm_print_state *pstate); |
85 | ||
7866a09b | 86 | extern void scm_init_variable (void); |
0f2d19dd | 87 | |
22a52da1 | 88 | #endif /* SCM_VARIABLE_H */ |
89e00824 ML |
89 | |
90 | /* | |
91 | Local Variables: | |
92 | c-file-style: "gnu" | |
93 | End: | |
94 | */ |