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1 | ;;; srfi-4.scm --- Homogeneous Numeric Vector Datatypes |
2 | ||
3 | ;; Copyright (C) 2001, 2002 Free Software Foundation, Inc. | |
4 | ;; | |
5 | ;; This program is free software; you can redistribute it and/or | |
6 | ;; modify it under the terms of the GNU General Public License as | |
7 | ;; published by the Free Software Foundation; either version 2, or | |
8 | ;; (at your option) any later version. | |
9 | ;; | |
10 | ;; This program is distributed in the hope that it will be useful, | |
11 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | ;; General Public License for more details. | |
14 | ;; | |
15 | ;; You should have received a copy of the GNU General Public License | |
16 | ;; along with this software; see the file COPYING. If not, write to | |
17 | ;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
18 | ;; Boston, MA 02111-1307 USA | |
19 | ;; | |
20 | ;; As a special exception, the Free Software Foundation gives permission | |
21 | ;; for additional uses of the text contained in its release of GUILE. | |
22 | ;; | |
23 | ;; The exception is that, if you link the GUILE library with other files | |
24 | ;; to produce an executable, this does not by itself cause the | |
25 | ;; resulting executable to be covered by the GNU General Public License. | |
26 | ;; Your use of that executable is in no way restricted on account of | |
27 | ;; linking the GUILE library code into it. | |
28 | ;; | |
29 | ;; This exception does not however invalidate any other reasons why | |
30 | ;; the executable file might be covered by the GNU General Public License. | |
31 | ;; | |
32 | ;; This exception applies only to the code released by the | |
33 | ;; Free Software Foundation under the name GUILE. If you copy | |
34 | ;; code from other Free Software Foundation releases into a copy of | |
35 | ;; GUILE, as the General Public License permits, the exception does | |
36 | ;; not apply to the code that you add in this way. To avoid misleading | |
37 | ;; anyone as to the status of such modified files, you must delete | |
38 | ;; this exception notice from them. | |
39 | ;; | |
40 | ;; If you write modifications of your own for GUILE, it is your choice | |
41 | ;; whether to permit this exception to apply to your modifications. | |
42 | ;; If you do not wish that, delete this exception notice. | |
43 | ||
44 | ;;; Author: Martin Grabmueller <mgrabmue@cs.tu-berlin.de> | |
71ca65d9 MG |
45 | |
46 | ;;; Commentary: | |
47 | ||
6be07c52 TTN |
48 | ;; This module implements homogeneous numeric vectors as defined in SRFI-4. |
49 | ;; This module is fully documented in the Guile Reference Manual. | |
71ca65d9 MG |
50 | |
51 | ;;; Code: | |
52 | ||
1a179b03 MD |
53 | (define-module (srfi srfi-4) |
54 | :export ( | |
71ca65d9 MG |
55 | ;;; Unsigned 8-bit vectors. |
56 | u8vector? make-u8vector u8vector u8vector-length u8vector-ref | |
57 | u8vector-set! u8vector->list list->u8vector | |
58 | ||
59 | ;;; Signed 8-bit vectors. | |
60 | s8vector? make-s8vector s8vector s8vector-length s8vector-ref | |
61 | s8vector-set! s8vector->list list->s8vector | |
62 | ||
63 | ;;; Unsigned 16-bit vectors. | |
64 | u16vector? make-u16vector u16vector u16vector-length u16vector-ref | |
65 | u16vector-set! u16vector->list list->u16vector | |
66 | ||
67 | ;;; Signed 16-bit vectors. | |
68 | s16vector? make-s16vector s16vector s16vector-length s16vector-ref | |
69 | s16vector-set! s16vector->list list->s16vector | |
70 | ||
71 | ;;; Unsigned 32-bit vectors. | |
72 | u32vector? make-u32vector u32vector u32vector-length u32vector-ref | |
73 | u32vector-set! u32vector->list list->u32vector | |
74 | ||
75 | ;;; Signed 32-bit vectors. | |
76 | s32vector? make-s32vector s32vector s32vector-length s32vector-ref | |
77 | s32vector-set! s32vector->list list->s32vector | |
78 | ||
79 | ;;; Unsigned 64-bit vectors. | |
80 | u64vector? make-u64vector u64vector u64vector-length u64vector-ref | |
81 | u64vector-set! u64vector->list list->u64vector | |
82 | ||
83 | ;;; Signed 64-bit vectors. | |
84 | s64vector? make-s64vector s64vector s64vector-length s64vector-ref | |
85 | s64vector-set! s64vector->list list->s64vector | |
86 | ||
87 | ;;; 32-bit floating point vectors. | |
88 | f32vector? make-f32vector f32vector f32vector-length f32vector-ref | |
89 | f32vector-set! f32vector->list list->f32vector | |
90 | ||
91 | ;;; 64-bit floating point vectors. | |
92 | f64vector? make-f64vector f64vector f64vector-length f64vector-ref | |
93 | f64vector-set! f64vector->list list->f64vector | |
1a179b03 | 94 | )) |
71ca65d9 MG |
95 | |
96 | ||
97 | ;; Make 'srfi-4 available as a feature identifiere to `cond-expand'. | |
98 | ;; | |
99 | (cond-expand-provide (current-module) '(srfi-4)) | |
100 | ||
101 | ||
102 | ;; Load the compiled primitives from the shared library. | |
103 | ;; | |
104 | (load-extension "libguile-srfi-srfi-4" "scm_init_srfi_4") | |
105 | ||
106 | ||
107 | ;; Reader extension for #f32() and #f64() vectors. | |
108 | ;; | |
109 | (define (hash-f char port) | |
110 | (if (or (char=? (peek-char port) #\3) | |
111 | (char=? (peek-char port) #\6)) | |
112 | (let* ((obj (read port))) | |
113 | (if (number? obj) | |
114 | (cond ((= obj 32) | |
115 | (let ((l (read port))) | |
116 | (if (list? l) | |
117 | (list->f32vector l) | |
118 | (error "syntax error in #f32() vector literal")))) | |
119 | ((= obj 64) | |
120 | (let ((l (read port))) | |
121 | (if (list? l) | |
122 | (list->f64vector l) | |
123 | (error "syntax error in #f64() vector literal")))) | |
124 | (else | |
125 | (error "syntax error in #f...() vector literal"))) | |
126 | (error "syntax error in #f...() vector literal"))) | |
127 | #f)) | |
128 | ||
129 | ||
130 | ;; Reader extension for #u8(), #u16(), #u32() and #u64() vectors. | |
131 | ;; | |
132 | (define (hash-u char port) | |
133 | (if (or (char=? (peek-char port) #\8) | |
134 | (char=? (peek-char port) #\1) | |
135 | (char=? (peek-char port) #\3) | |
136 | (char=? (peek-char port) #\6)) | |
137 | (let ((obj (read port))) | |
138 | (cond ((= obj 8) | |
139 | (let ((l (read port))) | |
140 | (if (list? l) | |
141 | (list->u8vector l) | |
142 | (error "syntax error in #u8() vector literal")))) | |
143 | ((= obj 16) | |
144 | (let ((l (read port))) | |
145 | (if (list? l) | |
146 | (list->u16vector l) | |
147 | (error "syntax error in #u16() vector literal")))) | |
148 | ((= obj 32) | |
149 | (let ((l (read port))) | |
150 | (if (list? l) | |
151 | (list->u32vector l) | |
152 | (error "syntax error in #u32() vector literal")))) | |
153 | ((= obj 64) | |
154 | (let ((l (read port))) | |
155 | (if (list? l) | |
156 | (list->u64vector l) | |
157 | (error "syntax error in #u64() vector literal")))) | |
158 | (else | |
159 | (error "syntax error in #u...() vector literal")))) | |
160 | (error "syntax error in #u...() vector literal"))) | |
6be07c52 | 161 | |
71ca65d9 MG |
162 | |
163 | ;; Reader extension for #s8(), #s16(), #s32() and #s64() vectors. | |
164 | ;; | |
165 | (define (hash-s char port) | |
166 | (if (or (char=? (peek-char port) #\8) | |
167 | (char=? (peek-char port) #\1) | |
168 | (char=? (peek-char port) #\3) | |
169 | (char=? (peek-char port) #\6)) | |
170 | (let ((obj (read port))) | |
171 | (cond ((= obj 8) | |
172 | (let ((l (read port))) | |
173 | (if (list? l) | |
174 | (list->s8vector l) | |
175 | (error "syntax error in #s8() vector literal")))) | |
176 | ((= obj 16) | |
177 | (let ((l (read port))) | |
178 | (if (list? l) | |
179 | (list->s16vector l) | |
180 | (error "syntax error in #s16() vector literal")))) | |
181 | ((= obj 32) | |
182 | (let ((l (read port))) | |
183 | (if (list? l) | |
184 | (list->s32vector l) | |
185 | (error "syntax error in #s32() vector literal")))) | |
186 | ((= obj 64) | |
187 | (let ((l (read port))) | |
188 | (if (list? l) | |
189 | (list->s64vector l) | |
190 | (error "syntax error in #s64() vector literal")))) | |
191 | (else | |
192 | (error "syntax error in #s...() vector literal")))) | |
193 | (error "syntax error in #s...() vector literal"))) | |
6be07c52 | 194 | |
71ca65d9 MG |
195 | |
196 | ;; Install the hash extensions. | |
197 | ;; | |
198 | (read-hash-extend #\f hash-f) | |
199 | (read-hash-extend #\u hash-u) | |
200 | (read-hash-extend #\s hash-s) | |
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201 | |
202 | ;;; srfi-4.scm ends here |