550909e2189669a39c7ec2e79fe80bcb1fb3b3ca
5 /* Copyright (C) 1995,1996,1997,1999, 2000 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_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 structure for each dimension.
64 typedef struct scm_array
66 SCM v
; /* the contents of the array, e.g., a vector or uniform vector. */
70 typedef struct scm_array_dim
78 extern long scm_tc16_array
;
79 #define SCM_ARRAYP(a) (SCM_NIMP(a) && (scm_tc16_array == SCM_TYP16(a)))
80 #define SCM_ARRAY_NDIM(x) ((scm_sizet)(SCM_UNPACK_CAR(x)>>17))
81 #define SCM_ARRAY_CONTIGUOUS 0x10000
82 #define SCM_ARRAY_CONTP(x) (SCM_ARRAY_CONTIGUOUS & (int)(SCM_UNPACK_CAR(x)))
84 #define SCM_ARRAY_V(a) (((scm_array *)SCM_CDR(a))->v)
85 #define SCM_ARRAY_BASE(a) (((scm_array *)SCM_CDR(a))->base)
86 #define SCM_ARRAY_DIMS(a) ((scm_array_dim *)(SCM_CHARS(a)+sizeof(scm_array)))
88 /* apparently it's possible to have more than SCM_LENGTH_MAX elements
89 in an array: if the length is SCM_LENGTH_MAX then the SCM_VELTS
90 block begins with the true length (a long int). I wonder if it
93 #define SCM_HUGE_LENGTH(x)\
94 (SCM_LENGTH_MAX==SCM_LENGTH(x) ? *((long *)SCM_VELTS(x)) : SCM_LENGTH(x))
98 extern scm_sizet
scm_uniform_element_size (SCM obj
);
99 extern SCM
scm_make_uve (long k
, SCM prot
);
100 extern SCM
scm_uniform_vector_length (SCM v
);
101 extern SCM
scm_array_p (SCM v
, SCM prot
);
102 extern SCM
scm_array_rank (SCM ra
);
103 extern SCM
scm_array_dimensions (SCM ra
);
104 extern long scm_aind (SCM ra
, SCM args
, const char *what
);
105 extern SCM
scm_make_ra (int ndim
);
106 extern SCM
scm_shap2ra (SCM args
, const char *what
);
107 extern SCM
scm_dimensions_to_uniform_array (SCM dims
, SCM prot
, SCM fill
);
108 extern void scm_ra_set_contp (SCM ra
);
109 extern SCM
scm_make_shared_array (SCM oldra
, SCM mapfunc
, SCM dims
);
110 extern SCM
scm_transpose_array (SCM args
);
111 extern SCM
scm_enclose_array (SCM axes
);
112 extern SCM
scm_array_in_bounds_p (SCM args
);
113 extern SCM
scm_uniform_vector_ref (SCM v
, SCM args
);
114 extern SCM
scm_cvref (SCM v
, scm_sizet pos
, SCM last
);
115 extern SCM
scm_array_set_x (SCM v
, SCM obj
, SCM args
);
116 extern SCM
scm_array_contents (SCM ra
, SCM strict
);
117 extern SCM
scm_ra2contig (SCM ra
, int copy
);
118 extern SCM
scm_uniform_array_read_x (SCM ra
, SCM port_or_fd
, SCM start
, SCM end
);
119 extern SCM
scm_uniform_array_write (SCM v
, SCM port_or_fd
, SCM start
, SCM end
);
120 extern SCM
scm_bit_count (SCM item
, SCM seq
);
121 extern SCM
scm_bit_position (SCM item
, SCM v
, SCM k
);
122 extern SCM
scm_bit_set_star_x (SCM v
, SCM kv
, SCM obj
);
123 extern SCM
scm_bit_count_star (SCM v
, SCM kv
, SCM obj
);
124 extern SCM
scm_bit_invert_x (SCM v
);
125 extern SCM
scm_istr2bve (char *str
, long len
);
126 extern SCM
scm_array_to_list (SCM v
);
127 extern SCM
scm_list_to_uniform_array (SCM ndim
, SCM prot
, SCM lst
);
128 extern int scm_raprin1 (SCM exp
, SCM port
, scm_print_state
*pstate
);
129 extern SCM
scm_array_prototype (SCM ra
);
130 extern void scm_init_unif (void);