1 /* srfi-4.c --- Uniform numeric vector datatypes.
3 * Copyright (C) 2001, 2004, 2006, 2009, 2010, 2011, 2014 Free Software Foundation, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public License
7 * as published by the Free Software Foundation; either version 3 of
8 * the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 #include "libguile/_scm.h"
26 #include "libguile/__scm.h"
27 #include "libguile/bdw-gc.h"
28 #include "libguile/srfi-4.h"
29 #include "libguile/bytevectors.h"
30 #include "libguile/error.h"
31 #include "libguile/eval.h"
32 #include "libguile/extensions.h"
33 #include "libguile/uniform.h"
34 #include "libguile/validate.h"
37 #define DEFINE_SCHEME_PROXY100(cname, modname, scmname) \
38 SCM cname (SCM arg1) \
40 static SCM var = SCM_BOOL_F; \
41 if (scm_is_false (var)) \
42 var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
43 return scm_call_1 (SCM_VARIABLE_REF (var), arg1); \
46 #define DEFINE_SCHEME_PROXY001(cname, modname, scmname) \
47 SCM cname (SCM args) \
49 static SCM var = SCM_BOOL_F; \
50 if (scm_is_false (var)) \
51 var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
52 return scm_apply_0 (SCM_VARIABLE_REF (var), args); \
55 #define DEFINE_SCHEME_PROXY110(cname, modname, scmname) \
56 SCM cname (SCM arg1, SCM opt1) \
58 static SCM var = SCM_BOOL_F; \
59 if (scm_is_false (var)) \
60 var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
61 if (SCM_UNBNDP (opt1)) \
62 return scm_call_1 (SCM_VARIABLE_REF (var), arg1); \
64 return scm_call_2 (SCM_VARIABLE_REF (var), arg1, opt1); \
67 #define DEFINE_SCHEME_PROXY200(cname, modname, scmname) \
68 SCM cname (SCM arg1, SCM arg2) \
70 static SCM var = SCM_BOOL_F; \
71 if (scm_is_false (var)) \
72 var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
73 return scm_call_2 (SCM_VARIABLE_REF (var), arg1, arg2); \
76 #define DEFINE_SCHEME_PROXY300(cname, modname, scmname) \
77 SCM cname (SCM arg1, SCM arg2, SCM arg3) \
79 static SCM var = SCM_BOOL_F; \
80 if (scm_is_false (var)) \
81 var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
82 return scm_call_3 (SCM_VARIABLE_REF (var), arg1, arg2, arg3); \
85 #define DEFPROXY100(cname, scmname) \
86 DEFINE_SCHEME_PROXY100 (cname, MOD, scmname)
87 #define DEFPROXY110(cname, scmname) \
88 DEFINE_SCHEME_PROXY110 (cname, MOD, scmname)
89 #define DEFPROXY001(cname, scmname) \
90 DEFINE_SCHEME_PROXY001 (cname, MOD, scmname)
91 #define DEFPROXY200(cname, scmname) \
92 DEFINE_SCHEME_PROXY200 (cname, MOD, scmname)
93 #define DEFPROXY300(cname, scmname) \
94 DEFINE_SCHEME_PROXY300 (cname, MOD, scmname)
96 #define DEFVECT(sym, str, func)\
98 #define DEFINE_SRFI_4_PROXIES(tag) \
99 DEFPROXY100 (scm_##tag##vector_p, #tag "vector?"); \
100 DEFPROXY110 (scm_make_##tag##vector, "make-" #tag "vector"); \
101 DEFPROXY001 (scm_##tag##vector, #tag "vector"); \
102 DEFPROXY100 (scm_##tag##vector_length, #tag "vector-length"); \
103 DEFPROXY200 (scm_##tag##vector_ref, #tag "vector-ref"); \
104 DEFPROXY300 (scm_##tag##vector_set_x, #tag "vector-set!"); \
105 DEFPROXY100 (scm_list_to_##tag##vector, "list->"#tag "vector"); \
106 DEFPROXY100 (scm_##tag##vector_to_list, #tag "vector->list"); \
110 SCM_ARRAY_ELEMENT_TYPE_##TAG
112 #define DEFINE_SRFI_4_C_FUNCS(TAG, tag, ctype, width) \
113 SCM scm_take_##tag##vector (ctype *data, size_t n) \
115 return scm_c_take_typed_bytevector ((scm_t_int8*)data, n, ETYPE (TAG), \
118 const ctype* scm_array_handle_##tag##_elements (scm_t_array_handle *h) \
120 if (h->element_type != ETYPE (TAG)) \
121 scm_wrong_type_arg_msg (NULL, 0, h->array, #tag "vector"); \
122 return ((const ctype*) h->elements) + h->base*width; \
124 ctype* scm_array_handle_##tag##_writable_elements (scm_t_array_handle *h) \
126 if (h->element_type != ETYPE (TAG)) \
127 scm_wrong_type_arg_msg (NULL, 0, h->array, #tag "vector"); \
128 return ((ctype*) h->writable_elements) + h->base*width; \
130 const ctype *scm_##tag##vector_elements (SCM uvec, \
131 scm_t_array_handle *h, \
132 size_t *lenp, ssize_t *incp) \
134 return scm_##tag##vector_writable_elements (uvec, h, lenp, incp); \
136 ctype *scm_##tag##vector_writable_elements (SCM uvec, \
137 scm_t_array_handle *h, \
138 size_t *lenp, ssize_t *incp) \
140 size_t byte_width = width * sizeof (ctype); \
141 if (!scm_is_bytevector (uvec) \
142 || (scm_c_bytevector_length (uvec) % byte_width)) \
143 scm_wrong_type_arg_msg (NULL, 0, uvec, #tag "vector"); \
144 scm_array_get_handle (uvec, h); \
146 *lenp = scm_c_bytevector_length (uvec) / byte_width; \
149 return ((ctype *)h->writable_elements); \
153 #define MOD "srfi srfi-4"
155 DEFINE_SRFI_4_PROXIES (u8
);
156 DEFINE_SRFI_4_C_FUNCS (U8
, u8
, scm_t_uint8
, 1);
158 DEFINE_SRFI_4_PROXIES (s8
);
159 DEFINE_SRFI_4_C_FUNCS (S8
, s8
, scm_t_int8
, 1);
161 DEFINE_SRFI_4_PROXIES (u16
);
162 DEFINE_SRFI_4_C_FUNCS (U16
, u16
, scm_t_uint16
, 1);
164 DEFINE_SRFI_4_PROXIES (s16
);
165 DEFINE_SRFI_4_C_FUNCS (S16
, s16
, scm_t_int16
, 1);
167 DEFINE_SRFI_4_PROXIES (u32
);
168 DEFINE_SRFI_4_C_FUNCS (U32
, u32
, scm_t_uint32
, 1);
170 DEFINE_SRFI_4_PROXIES (s32
);
171 DEFINE_SRFI_4_C_FUNCS (S32
, s32
, scm_t_int32
, 1);
173 DEFINE_SRFI_4_PROXIES (u64
);
174 DEFINE_SRFI_4_C_FUNCS (U64
, u64
, scm_t_uint64
, 1);
176 DEFINE_SRFI_4_PROXIES (s64
);
177 DEFINE_SRFI_4_C_FUNCS (S64
, s64
, scm_t_int64
, 1);
179 DEFINE_SRFI_4_PROXIES (f32
);
180 DEFINE_SRFI_4_C_FUNCS (F32
, f32
, float, 1);
182 DEFINE_SRFI_4_PROXIES (f64
);
183 DEFINE_SRFI_4_C_FUNCS (F64
, f64
, double, 1);
186 #define MOD "srfi srfi-4 gnu"
188 DEFINE_SRFI_4_PROXIES (c32
);
189 DEFINE_SRFI_4_C_FUNCS (C32
, c32
, float, 2);
191 DEFINE_SRFI_4_PROXIES (c64
);
192 DEFINE_SRFI_4_C_FUNCS (C64
, c64
, double, 2);
194 #define DEFINE_SRFI_4_GNU_PROXIES(tag) \
195 DEFPROXY100 (scm_any_to_##tag##vector, "any->" #tag "vector")
198 #define MOD "srfi srfi-4 gnu"
199 DEFINE_SRFI_4_GNU_PROXIES (u8
);
200 DEFINE_SRFI_4_GNU_PROXIES (s8
);
201 DEFINE_SRFI_4_GNU_PROXIES (u16
);
202 DEFINE_SRFI_4_GNU_PROXIES (s16
);
203 DEFINE_SRFI_4_GNU_PROXIES (u32
);
204 DEFINE_SRFI_4_GNU_PROXIES (s32
);
205 DEFINE_SRFI_4_GNU_PROXIES (u64
);
206 DEFINE_SRFI_4_GNU_PROXIES (s64
);
207 DEFINE_SRFI_4_GNU_PROXIES (f32
);
208 DEFINE_SRFI_4_GNU_PROXIES (f64
);
209 DEFINE_SRFI_4_GNU_PROXIES (c32
);
210 DEFINE_SRFI_4_GNU_PROXIES (c64
);
213 SCM_DEFINE (scm_make_srfi_4_vector
, "make-srfi-4-vector", 2, 1, 0,
214 (SCM type
, SCM len
, SCM fill
),
215 "Make a srfi-4 vector")
216 #define FUNC_NAME s_scm_make_srfi_4_vector
221 for (c_type
= 0; c_type
<= SCM_ARRAY_ELEMENT_TYPE_LAST
; c_type
++)
222 if (scm_is_eq (type
, scm_i_array_element_types
[c_type
]))
224 if (c_type
> SCM_ARRAY_ELEMENT_TYPE_LAST
)
225 scm_wrong_type_arg_msg (FUNC_NAME
, SCM_ARG1
, type
, "vector type");
228 case SCM_ARRAY_ELEMENT_TYPE_U8
:
229 case SCM_ARRAY_ELEMENT_TYPE_S8
:
230 case SCM_ARRAY_ELEMENT_TYPE_U16
:
231 case SCM_ARRAY_ELEMENT_TYPE_S16
:
232 case SCM_ARRAY_ELEMENT_TYPE_U32
:
233 case SCM_ARRAY_ELEMENT_TYPE_S32
:
234 case SCM_ARRAY_ELEMENT_TYPE_U64
:
235 case SCM_ARRAY_ELEMENT_TYPE_S64
:
236 case SCM_ARRAY_ELEMENT_TYPE_F32
:
237 case SCM_ARRAY_ELEMENT_TYPE_F64
:
238 case SCM_ARRAY_ELEMENT_TYPE_C32
:
239 case SCM_ARRAY_ELEMENT_TYPE_C64
:
243 c_len
= scm_to_size_t (len
);
244 ret
= scm_i_make_typed_bytevector (c_len
, c_type
);
246 if (SCM_UNBNDP (fill
) || scm_is_eq (len
, SCM_INUM0
))
248 else if (scm_is_true (scm_zero_p (fill
)))
249 memset (SCM_BYTEVECTOR_CONTENTS (ret
), 0,
250 SCM_BYTEVECTOR_LENGTH (ret
));
253 scm_t_array_handle h
;
256 scm_array_get_handle (ret
, &h
);
257 for (i
= 0; i
< c_len
; i
++)
258 scm_array_handle_set (&h
, i
, fill
);
259 scm_array_handle_release (&h
);
264 scm_wrong_type_arg_msg (FUNC_NAME
, SCM_ARG1
, type
, "uniform vector type");
265 return SCM_BOOL_F
; /* not reached */
271 scm_init_srfi_4 (void)
273 #define REGISTER(tag, TAG) \
274 scm_i_register_vector_constructor \
275 (scm_i_array_element_types[SCM_ARRAY_ELEMENT_TYPE_##TAG], \
276 scm_make_##tag##vector)
291 #include "libguile/srfi-4.x"
294 /* End of srfi-4.c. */