| 1 | /* classes: h_files */ |
| 2 | |
| 3 | #ifndef UNIFH |
| 4 | #define UNIFH |
| 5 | /* Copyright (C) 1995,1996,1997,1999 Free Software Foundation, Inc. |
| 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 |
| 19 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
| 20 | * Boston, MA 02111-1307 USA |
| 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. |
| 44 | * If you do not wish that, delete this exception notice. */ |
| 45 | \f |
| 46 | |
| 47 | #include "libguile/__scm.h" |
| 48 | |
| 49 | \f |
| 50 | |
| 51 | /* |
| 52 | an array SCM is a non-immediate pointing to a heap cell with: |
| 53 | |
| 54 | CAR: bits 0-14 hold the dimension (0 -- 32767) |
| 55 | bit 15 is the SCM_ARRAY_CONTIGUOUS flag |
| 56 | bits 16-31 hold the smob type id: scm_tc16_array |
| 57 | CDR: pointer to a malloced block containing an scm_array structure |
| 58 | followed by an scm_array_dim structure for each dimension. |
| 59 | */ |
| 60 | |
| 61 | typedef struct scm_array |
| 62 | { |
| 63 | SCM v; /* the contents of the array, e.g., a vector or uniform vector. */ |
| 64 | scm_sizet base; |
| 65 | } scm_array; |
| 66 | |
| 67 | typedef struct scm_array_dim |
| 68 | { |
| 69 | long lbnd; |
| 70 | long ubnd; |
| 71 | long inc; |
| 72 | } scm_array_dim; |
| 73 | |
| 74 | |
| 75 | extern long scm_tc16_array; |
| 76 | #define SCM_ARRAYP(a) (scm_tc16_array==SCM_TYP16(a)) |
| 77 | #define SCM_ARRAY_NDIM(x) ((scm_sizet)(SCM_CAR(x)>>17)) |
| 78 | #define SCM_ARRAY_CONTIGUOUS 0x10000 |
| 79 | #define SCM_ARRAY_CONTP(x) (SCM_ARRAY_CONTIGUOUS & (int)SCM_CAR(x)) |
| 80 | |
| 81 | #define SCM_ARRAY_V(a) (((scm_array *)SCM_CDR(a))->v) |
| 82 | #define SCM_ARRAY_BASE(a) (((scm_array *)SCM_CDR(a))->base) |
| 83 | #define SCM_ARRAY_DIMS(a) ((scm_array_dim *)(SCM_CHARS(a)+sizeof(scm_array))) |
| 84 | |
| 85 | /* apparently it's possible to have more than SCM_LENGTH_MAX elements |
| 86 | in an array: if the length is SCM_LENGTH_MAX then the SCM_VELTS |
| 87 | block begins with the true length (a long int). I wonder if it |
| 88 | works. */ |
| 89 | |
| 90 | #define SCM_HUGE_LENGTH(x)\ |
| 91 | (SCM_LENGTH_MAX==SCM_LENGTH(x) ? *((long *)SCM_VELTS(x)) : SCM_LENGTH(x)) |
| 92 | |
| 93 | \f |
| 94 | |
| 95 | extern scm_sizet scm_uniform_element_size (SCM obj); |
| 96 | extern SCM scm_makflo (float x); |
| 97 | extern SCM scm_make_uve (long k, SCM prot); |
| 98 | extern SCM scm_uniform_vector_length (SCM v); |
| 99 | extern SCM scm_array_p (SCM v, SCM prot); |
| 100 | extern SCM scm_array_rank (SCM ra); |
| 101 | extern SCM scm_array_dimensions (SCM ra); |
| 102 | extern long scm_aind (SCM ra, SCM args, const char *what); |
| 103 | extern SCM scm_make_ra (int ndim); |
| 104 | extern SCM scm_shap2ra (SCM args, const char *what); |
| 105 | extern SCM scm_dimensions_to_uniform_array (SCM dims, SCM prot, SCM fill); |
| 106 | extern void scm_ra_set_contp (SCM ra); |
| 107 | extern SCM scm_make_shared_array (SCM oldra, SCM mapfunc, SCM dims); |
| 108 | extern SCM scm_transpose_array (SCM args); |
| 109 | extern SCM scm_enclose_array (SCM axes); |
| 110 | extern SCM scm_array_in_bounds_p (SCM args); |
| 111 | extern SCM scm_uniform_vector_ref (SCM v, SCM args); |
| 112 | extern SCM scm_cvref (SCM v, scm_sizet pos, SCM last); |
| 113 | extern SCM scm_array_set_x (SCM v, SCM obj, SCM args); |
| 114 | extern SCM scm_array_contents (SCM ra, SCM strict); |
| 115 | extern SCM scm_ra2contig (SCM ra, int copy); |
| 116 | extern SCM scm_uniform_array_read_x (SCM ra, SCM port_or_fd, SCM start, SCM end); |
| 117 | extern SCM scm_uniform_array_write (SCM v, SCM port_or_fd, SCM start, SCM end); |
| 118 | extern SCM scm_bit_count (SCM item, SCM seq); |
| 119 | extern SCM scm_bit_position (SCM item, SCM v, SCM k); |
| 120 | extern SCM scm_bit_set_star_x (SCM v, SCM kv, SCM obj); |
| 121 | extern SCM scm_bit_count_star (SCM v, SCM kv, SCM obj); |
| 122 | extern SCM scm_bit_invert_x (SCM v); |
| 123 | extern SCM scm_istr2bve (char *str, long len); |
| 124 | extern SCM scm_array_to_list (SCM v); |
| 125 | extern SCM scm_list_to_uniform_array (SCM ndim, SCM prot, SCM lst); |
| 126 | extern int scm_raprin1 (SCM exp, SCM port, scm_print_state *pstate); |
| 127 | extern SCM scm_array_prototype (SCM ra); |
| 128 | extern void scm_init_unif (void); |
| 129 | |
| 130 | #endif /* UNIFH */ |