1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/* classes: h_files */
#ifndef SCM_UNIFORM_VECTORS_H
#define SCM_UNIFORM_VECTORS_H
/* Copyright (C) 1995,1996,1997,1999,2000,2001 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. */
/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
#include "libguile/__scm.h"
/*
an array SCM is a non-immediate pointing to a heap cell with:
CAR: bits 0-14 hold the dimension (0 -- 32767)
bit 15 is the SCM_ARRAY_FLAG_CONTIGUOUS flag
bits 16-31 hold the smob type id: scm_tc16_array
CDR: pointer to a malloced block containing an scm_array structure
followed by an scm_array_dim_t structure for each dimension.
*/
typedef struct scm_array_t
{
SCM v; /* the contents of the array, e.g., a vector or uniform vector. */
unsigned long base;
} scm_array_t;
typedef struct scm_array_dim_t
{
long lbnd;
long ubnd;
long inc;
} scm_array_dim_t;
#if (SCM_DEBUG_DEPRECATED == 0)
# define scm_array scm_array_t
# define scm_array_dim scm_array_dim_t
#endif
extern scm_bits_t scm_tc16_array;
#define SCM_ARRAY_FLAG_CONTIGUOUS (1 << 16)
#if (SCM_DEBUG_DEPRECATED == 0)
#define SCM_ARRAY_CONTIGUOUS SCM_ARRAY_FLAG_CONTIGUOUS
#endif
#define SCM_ARRAYP(a) SCM_TYP16_PREDICATE (scm_tc16_array, a)
#define SCM_ARRAY_NDIM(x) ((size_t) (SCM_CELL_WORD_0 (x)) >> 17)
#define SCM_ARRAY_CONTP(x) (SCM_CELL_WORD_0 (x) & SCM_ARRAY_FLAG_CONTIGUOUS)
#define SCM_SET_ARRAY_CONTIGUOUS_FLAG(x) \
(SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) | SCM_ARRAY_FLAG_CONTIGUOUS))
#define SCM_CLR_ARRAY_CONTIGUOUS_FLAG(x) \
(SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) & ~SCM_ARRAY_FLAG_CONTIGUOUS))
#define SCM_ARRAY_MEM(a) ((scm_array_t *) SCM_CELL_WORD_1 (a))
#define SCM_ARRAY_V(a) (SCM_ARRAY_MEM (a)->v)
#define SCM_ARRAY_BASE(a) (SCM_ARRAY_MEM (a)->base)
#define SCM_ARRAY_DIMS(a) ((scm_array_dim_t *)((char *) SCM_ARRAY_MEM (a) + sizeof (scm_array_t)))
#define SCM_I_MAX_LENGTH ((unsigned long) (-1L) >> 8)
#define SCM_UVECTOR_BASE(x) ((void *) (SCM_CELL_WORD_1 (x)))
#define SCM_SET_UVECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
#define SCM_UVECTOR_MAX_LENGTH SCM_I_MAX_LENGTH
#define SCM_UVECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
#define SCM_SET_UVECTOR_LENGTH(v, l, t) (SCM_SET_CELL_WORD_0 ((v), ((l) << 8) + (t)))
#define SCM_BITVECTOR_P(x) (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_bvect))
#define SCM_BITVECTOR_BASE(x) ((void *) (SCM_CELL_WORD_1 (x)))
#define SCM_SET_BITVECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
#define SCM_BITVECTOR_MAX_LENGTH SCM_I_MAX_LENGTH
#define SCM_BITVECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
#define SCM_SET_BITVECTOR_LENGTH(v, l) (SCM_SET_CELL_WORD_0 ((v), ((l) << 8) + scm_tc7_bvect))
extern size_t scm_uniform_element_size (SCM obj);
extern SCM scm_make_uve (long k, SCM prot);
extern SCM scm_uniform_vector_length (SCM v);
extern SCM scm_array_p (SCM v, SCM prot);
extern SCM scm_array_rank (SCM ra);
extern SCM scm_array_dimensions (SCM ra);
extern SCM scm_shared_array_root (SCM ra);
extern SCM scm_shared_array_offset (SCM ra);
extern SCM scm_shared_array_increments (SCM ra);
extern long scm_aind (SCM ra, SCM args, const char *what);
extern SCM scm_make_ra (int ndim);
extern SCM scm_shap2ra (SCM args, const char *what);
extern SCM scm_dimensions_to_uniform_array (SCM dims, SCM prot, SCM fill);
extern void scm_ra_set_contp (SCM ra);
extern SCM scm_make_shared_array (SCM oldra, SCM mapfunc, SCM dims);
extern SCM scm_transpose_array (SCM ra, SCM args);
extern SCM scm_enclose_array (SCM ra, SCM axes);
extern SCM scm_array_in_bounds_p (SCM v, SCM args);
extern SCM scm_uniform_vector_ref (SCM v, SCM args);
extern SCM scm_cvref (SCM v, unsigned long pos, SCM last);
extern SCM scm_array_set_x (SCM v, SCM obj, SCM args);
extern SCM scm_array_contents (SCM ra, SCM strict);
extern SCM scm_ra2contig (SCM ra, int copy);
extern SCM scm_uniform_array_read_x (SCM ra, SCM port_or_fd, SCM start, SCM end);
extern SCM scm_uniform_array_write (SCM v, SCM port_or_fd, SCM start, SCM end);
extern SCM scm_bit_count (SCM item, SCM seq);
extern SCM scm_bit_position (SCM item, SCM v, SCM k);
extern SCM scm_bit_set_star_x (SCM v, SCM kv, SCM obj);
extern SCM scm_bit_count_star (SCM v, SCM kv, SCM obj);
extern SCM scm_bit_invert_x (SCM v);
extern SCM scm_istr2bve (char *str, long len);
extern SCM scm_array_to_list (SCM v);
extern SCM scm_list_to_uniform_array (SCM ndim, SCM prot, SCM lst);
extern int scm_raprin1 (SCM exp, SCM port, scm_print_state *pstate);
extern SCM scm_array_prototype (SCM ra);
extern void scm_init_unif (void);
#if (SCM_DEBUG_DEPRECATED == 0)
/* apparently it's possible to have more than SCM_LENGTH_MAX elements
in an array: if the length is SCM_LENGTH_MAX then the SCM_VELTS
block begins with the true length (a long int). I wonder if it
works. */
#define SCM_HUGE_LENGTH(x)\
(SCM_LENGTH_MAX==SCM_LENGTH(x) ? *((long *)SCM_VELTS(x)) : SCM_LENGTH(x))
#endif /* SCM_DEBUG_DEPRECATED == 0 */
#endif /* SCM_UNIFORM_VECTORS_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
|
