3 #ifndef SCM_UNIFORM_VECTORS_H
4 #define SCM_UNIFORM_VECTORS_H
5 /* Copyright (C) 1995,1996,1997,1999,2000,2001 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. */
46 /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
47 gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
50 #include "libguile/__scm.h"
55 an array SCM is a non-immediate pointing to a heap cell with:
57 CAR: bits 0-14 hold the dimension (0 -- 32767)
58 bit 15 is the SCM_ARRAY_FLAG_CONTIGUOUS flag
59 bits 16-31 hold the smob type id: scm_tc16_array
60 CDR: pointer to a malloced block containing an scm_array structure
61 followed by an scm_array_dim_t structure for each dimension.
64 typedef struct scm_array_t
66 SCM v
; /* the contents of the array, e.g., a vector or uniform vector. */
70 typedef struct scm_array_dim_t
77 #if (SCM_DEBUG_DEPRECATED == 0)
78 # define scm_array scm_array_t
79 # define scm_array_dim scm_array_dim_t
82 extern scm_bits_t scm_tc16_array
;
84 #define SCM_ARRAY_FLAG_CONTIGUOUS (1 << 16)
86 #if (SCM_DEBUG_DEPRECATED == 0)
87 #define SCM_ARRAY_CONTIGUOUS SCM_ARRAY_FLAG_CONTIGUOUS
90 #define SCM_ARRAYP(a) SCM_TYP16_PREDICATE (scm_tc16_array, a)
91 #define SCM_ARRAY_NDIM(x) ((size_t) (SCM_CELL_WORD_0 (x)) >> 17)
92 #define SCM_ARRAY_CONTP(x) (SCM_CELL_WORD_0 (x) & SCM_ARRAY_FLAG_CONTIGUOUS)
93 #define SCM_SET_ARRAY_CONTIGUOUS_FLAG(x) \
94 (SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) | SCM_ARRAY_FLAG_CONTIGUOUS))
95 #define SCM_CLR_ARRAY_CONTIGUOUS_FLAG(x) \
96 (SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) & ~SCM_ARRAY_FLAG_CONTIGUOUS))
98 #define SCM_ARRAY_MEM(a) ((scm_array_t *) SCM_CELL_WORD_1 (a))
99 #define SCM_ARRAY_V(a) (SCM_ARRAY_MEM (a)->v)
100 #define SCM_ARRAY_BASE(a) (SCM_ARRAY_MEM (a)->base)
101 #define SCM_ARRAY_DIMS(a) ((scm_array_dim_t *)((char *) SCM_ARRAY_MEM (a) + sizeof (scm_array_t)))
103 #define SCM_I_MAX_LENGTH ((unsigned long) (-1L) >> 8)
105 #define SCM_UVECTOR_BASE(x) ((void *) (SCM_CELL_WORD_1 (x)))
106 #define SCM_SET_UVECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
107 #define SCM_UVECTOR_MAX_LENGTH SCM_I_MAX_LENGTH
108 #define SCM_UVECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
109 #define SCM_SET_UVECTOR_LENGTH(v, l, t) (SCM_SET_CELL_WORD_0 ((v), ((l) << 8) + (t)))
111 #define SCM_BITVECTOR_P(x) (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_bvect))
112 #define SCM_BITVECTOR_BASE(x) ((void *) (SCM_CELL_WORD_1 (x)))
113 #define SCM_SET_BITVECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
114 #define SCM_BITVECTOR_MAX_LENGTH SCM_I_MAX_LENGTH
115 #define SCM_BITVECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
116 #define SCM_SET_BITVECTOR_LENGTH(v, l) (SCM_SET_CELL_WORD_0 ((v), ((l) << 8) + scm_tc7_bvect))
120 extern size_t scm_uniform_element_size (SCM obj
);
121 extern SCM
scm_make_uve (long k
, SCM prot
);
122 extern SCM
scm_uniform_vector_length (SCM v
);
123 extern SCM
scm_array_p (SCM v
, SCM prot
);
124 extern SCM
scm_array_rank (SCM ra
);
125 extern SCM
scm_array_dimensions (SCM ra
);
126 extern SCM
scm_shared_array_root (SCM ra
);
127 extern SCM
scm_shared_array_offset (SCM ra
);
128 extern SCM
scm_shared_array_increments (SCM ra
);
129 extern long scm_aind (SCM ra
, SCM args
, const char *what
);
130 extern SCM
scm_make_ra (int ndim
);
131 extern SCM
scm_shap2ra (SCM args
, const char *what
);
132 extern SCM
scm_dimensions_to_uniform_array (SCM dims
, SCM prot
, SCM fill
);
133 extern void scm_ra_set_contp (SCM ra
);
134 extern SCM
scm_make_shared_array (SCM oldra
, SCM mapfunc
, SCM dims
);
135 extern SCM
scm_transpose_array (SCM ra
, SCM args
);
136 extern SCM
scm_enclose_array (SCM ra
, SCM axes
);
137 extern SCM
scm_array_in_bounds_p (SCM v
, SCM args
);
138 extern SCM
scm_uniform_vector_ref (SCM v
, SCM args
);
139 extern SCM
scm_cvref (SCM v
, unsigned long pos
, SCM last
);
140 extern SCM
scm_array_set_x (SCM v
, SCM obj
, SCM args
);
141 extern SCM
scm_array_contents (SCM ra
, SCM strict
);
142 extern SCM
scm_ra2contig (SCM ra
, int copy
);
143 extern SCM
scm_uniform_array_read_x (SCM ra
, SCM port_or_fd
, SCM start
, SCM end
);
144 extern SCM
scm_uniform_array_write (SCM v
, SCM port_or_fd
, SCM start
, SCM end
);
145 extern SCM
scm_bit_count (SCM item
, SCM seq
);
146 extern SCM
scm_bit_position (SCM item
, SCM v
, SCM k
);
147 extern SCM
scm_bit_set_star_x (SCM v
, SCM kv
, SCM obj
);
148 extern SCM
scm_bit_count_star (SCM v
, SCM kv
, SCM obj
);
149 extern SCM
scm_bit_invert_x (SCM v
);
150 extern SCM
scm_istr2bve (char *str
, long len
);
151 extern SCM
scm_array_to_list (SCM v
);
152 extern SCM
scm_list_to_uniform_array (SCM ndim
, SCM prot
, SCM lst
);
153 extern int scm_raprin1 (SCM exp
, SCM port
, scm_print_state
*pstate
);
154 extern SCM
scm_array_prototype (SCM ra
);
155 extern void scm_init_unif (void);
159 #if (SCM_DEBUG_DEPRECATED == 0)
161 /* apparently it's possible to have more than SCM_LENGTH_MAX elements
162 in an array: if the length is SCM_LENGTH_MAX then the SCM_VELTS
163 block begins with the true length (a long int). I wonder if it
165 #define SCM_HUGE_LENGTH(x)\
166 (SCM_LENGTH_MAX==SCM_LENGTH(x) ? *((long *)SCM_VELTS(x)) : SCM_LENGTH(x))
168 #endif /* SCM_DEBUG_DEPRECATED == 0 */
170 #endif /* SCM_UNIFORM_VECTORS_H */