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/* srfi-4.c --- Uniform numeric vector datatypes.
Copyright 2001,2004,2006,2009-2011,2014,2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Guile is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Guile. If not, see
<https://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include "bdw-gc.h"
#include "boolean.h"
#include "bytevectors.h"
#include "error.h"
#include "eval.h"
#include "extensions.h"
#include "generalized-vectors.h"
#include "gsubr.h"
#include "modules.h"
#include "numbers.h"
#include "uniform.h"
#include "variable.h"
#include "version.h"
#include "srfi-4.h"
#define DEFINE_SCHEME_PROXY100(cname, modname, scmname) \
SCM cname (SCM arg1) \
{ \
static SCM var = SCM_BOOL_F; \
if (scm_is_false (var)) \
var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
return scm_call_1 (SCM_VARIABLE_REF (var), arg1); \
}
#define DEFINE_SCHEME_PROXY001(cname, modname, scmname) \
SCM cname (SCM args) \
{ \
static SCM var = SCM_BOOL_F; \
if (scm_is_false (var)) \
var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
return scm_apply_0 (SCM_VARIABLE_REF (var), args); \
}
#define DEFINE_SCHEME_PROXY110(cname, modname, scmname) \
SCM cname (SCM arg1, SCM opt1) \
{ \
static SCM var = SCM_BOOL_F; \
if (scm_is_false (var)) \
var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
if (SCM_UNBNDP (opt1)) \
return scm_call_1 (SCM_VARIABLE_REF (var), arg1); \
else \
return scm_call_2 (SCM_VARIABLE_REF (var), arg1, opt1); \
}
#define DEFINE_SCHEME_PROXY200(cname, modname, scmname) \
SCM cname (SCM arg1, SCM arg2) \
{ \
static SCM var = SCM_BOOL_F; \
if (scm_is_false (var)) \
var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
return scm_call_2 (SCM_VARIABLE_REF (var), arg1, arg2); \
}
#define DEFINE_SCHEME_PROXY300(cname, modname, scmname) \
SCM cname (SCM arg1, SCM arg2, SCM arg3) \
{ \
static SCM var = SCM_BOOL_F; \
if (scm_is_false (var)) \
var = scm_c_module_lookup (scm_c_resolve_module (modname), scmname); \
return scm_call_3 (SCM_VARIABLE_REF (var), arg1, arg2, arg3); \
}
#define DEFPROXY100(cname, scmname) \
DEFINE_SCHEME_PROXY100 (cname, MOD, scmname)
#define DEFPROXY110(cname, scmname) \
DEFINE_SCHEME_PROXY110 (cname, MOD, scmname)
#define DEFPROXY001(cname, scmname) \
DEFINE_SCHEME_PROXY001 (cname, MOD, scmname)
#define DEFPROXY200(cname, scmname) \
DEFINE_SCHEME_PROXY200 (cname, MOD, scmname)
#define DEFPROXY300(cname, scmname) \
DEFINE_SCHEME_PROXY300 (cname, MOD, scmname)
#define DEFVECT(sym, str, func)\
#define DEFINE_SRFI_4_PROXIES(tag) \
DEFPROXY100 (scm_##tag##vector_p, #tag "vector?"); \
DEFPROXY110 (scm_make_##tag##vector, "make-" #tag "vector"); \
DEFPROXY001 (scm_##tag##vector, #tag "vector"); \
DEFPROXY100 (scm_##tag##vector_length, #tag "vector-length"); \
DEFPROXY200 (scm_##tag##vector_ref, #tag "vector-ref"); \
DEFPROXY300 (scm_##tag##vector_set_x, #tag "vector-set!"); \
DEFPROXY100 (scm_list_to_##tag##vector, "list->"#tag "vector"); \
DEFPROXY100 (scm_##tag##vector_to_list, #tag "vector->list"); \
#define ETYPE(TAG) \
SCM_ARRAY_ELEMENT_TYPE_##TAG
#define DEFINE_SRFI_4_C_FUNCS(TAG, tag, ctype, width) \
SCM scm_take_##tag##vector (ctype *data, size_t n) \
{ \
return scm_c_take_typed_bytevector ((int8_t*)data, n, ETYPE (TAG), \
SCM_BOOL_F); \
} \
const ctype* scm_array_handle_##tag##_elements (scm_t_array_handle *h) \
{ \
if (h->element_type != ETYPE (TAG)) \
scm_wrong_type_arg_msg (NULL, 0, h->array, #tag "vector"); \
return ((const ctype *) h->elements) + h->base*width; \
} \
ctype* scm_array_handle_##tag##_writable_elements (scm_t_array_handle *h) \
{ \
if (h->writable_elements != h->elements) \
scm_wrong_type_arg_msg (NULL, 0, h->array, "mutable " #tag "vector"); \
return (ctype *) scm_array_handle_##tag##_elements (h); \
} \
const ctype *scm_##tag##vector_elements (SCM uvec, \
scm_t_array_handle *h, \
size_t *lenp, ssize_t *incp) \
{ \
size_t byte_width = width * sizeof (ctype); \
if (!scm_is_bytevector (uvec) \
|| (scm_c_bytevector_length (uvec) % byte_width)) \
scm_wrong_type_arg_msg (NULL, 0, uvec, #tag "vector"); \
scm_array_get_handle (uvec, h); \
if (lenp) \
*lenp = scm_c_bytevector_length (uvec) / byte_width; \
if (incp) \
*incp = 1; \
return ((const ctype *) h->elements); \
} \
ctype *scm_##tag##vector_writable_elements (SCM uvec, \
scm_t_array_handle *h, \
size_t *lenp, ssize_t *incp) \
{ \
const ctype *ret = scm_##tag##vector_elements (uvec, h, lenp, incp);\
if (h->writable_elements != h->elements) \
scm_wrong_type_arg_msg (NULL, 0, h->array, "mutable " #tag "vector"); \
return (ctype *) ret; \
}
#define MOD "srfi srfi-4"
DEFINE_SRFI_4_PROXIES (u8);
DEFINE_SRFI_4_C_FUNCS (U8, u8, uint8_t, 1);
DEFINE_SRFI_4_PROXIES (s8);
DEFINE_SRFI_4_C_FUNCS (S8, s8, int8_t, 1);
DEFINE_SRFI_4_PROXIES (u16);
DEFINE_SRFI_4_C_FUNCS (U16, u16, uint16_t, 1);
DEFINE_SRFI_4_PROXIES (s16);
DEFINE_SRFI_4_C_FUNCS (S16, s16, int16_t, 1);
DEFINE_SRFI_4_PROXIES (u32);
DEFINE_SRFI_4_C_FUNCS (U32, u32, uint32_t, 1);
DEFINE_SRFI_4_PROXIES (s32);
DEFINE_SRFI_4_C_FUNCS (S32, s32, int32_t, 1);
DEFINE_SRFI_4_PROXIES (u64);
DEFINE_SRFI_4_C_FUNCS (U64, u64, uint64_t, 1);
DEFINE_SRFI_4_PROXIES (s64);
DEFINE_SRFI_4_C_FUNCS (S64, s64, int64_t, 1);
DEFINE_SRFI_4_PROXIES (f32);
DEFINE_SRFI_4_C_FUNCS (F32, f32, float, 1);
DEFINE_SRFI_4_PROXIES (f64);
DEFINE_SRFI_4_C_FUNCS (F64, f64, double, 1);
#undef MOD
#define MOD "srfi srfi-4 gnu"
DEFINE_SRFI_4_PROXIES (c32);
DEFINE_SRFI_4_C_FUNCS (C32, c32, float, 2);
DEFINE_SRFI_4_PROXIES (c64);
DEFINE_SRFI_4_C_FUNCS (C64, c64, double, 2);
#define DEFINE_SRFI_4_GNU_PROXIES(tag) \
DEFPROXY100 (scm_any_to_##tag##vector, "any->" #tag "vector")
#undef MOD
#define MOD "srfi srfi-4 gnu"
DEFINE_SRFI_4_GNU_PROXIES (u8);
DEFINE_SRFI_4_GNU_PROXIES (s8);
DEFINE_SRFI_4_GNU_PROXIES (u16);
DEFINE_SRFI_4_GNU_PROXIES (s16);
DEFINE_SRFI_4_GNU_PROXIES (u32);
DEFINE_SRFI_4_GNU_PROXIES (s32);
DEFINE_SRFI_4_GNU_PROXIES (u64);
DEFINE_SRFI_4_GNU_PROXIES (s64);
DEFINE_SRFI_4_GNU_PROXIES (f32);
DEFINE_SRFI_4_GNU_PROXIES (f64);
DEFINE_SRFI_4_GNU_PROXIES (c32);
DEFINE_SRFI_4_GNU_PROXIES (c64);
SCM_DEFINE (scm_make_srfi_4_vector, "make-srfi-4-vector", 2, 1, 0,
(SCM type, SCM len, SCM fill),
"Make a srfi-4 vector")
#define FUNC_NAME s_scm_make_srfi_4_vector
{
int c_type;
size_t c_len;
for (c_type = 0; c_type <= SCM_ARRAY_ELEMENT_TYPE_LAST; c_type++)
if (scm_is_eq (type, scm_i_array_element_types[c_type]))
break;
if (c_type > SCM_ARRAY_ELEMENT_TYPE_LAST)
scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, type, "vector type");
switch (c_type)
{
case SCM_ARRAY_ELEMENT_TYPE_U8:
case SCM_ARRAY_ELEMENT_TYPE_S8:
case SCM_ARRAY_ELEMENT_TYPE_U16:
case SCM_ARRAY_ELEMENT_TYPE_S16:
case SCM_ARRAY_ELEMENT_TYPE_U32:
case SCM_ARRAY_ELEMENT_TYPE_S32:
case SCM_ARRAY_ELEMENT_TYPE_U64:
case SCM_ARRAY_ELEMENT_TYPE_S64:
case SCM_ARRAY_ELEMENT_TYPE_F32:
case SCM_ARRAY_ELEMENT_TYPE_F64:
case SCM_ARRAY_ELEMENT_TYPE_C32:
case SCM_ARRAY_ELEMENT_TYPE_C64:
{
SCM ret;
c_len = scm_to_size_t (len);
ret = scm_i_make_typed_bytevector (c_len, c_type);
if (SCM_UNBNDP (fill) || scm_is_eq (len, SCM_INUM0))
; /* pass */
else if (scm_is_true (scm_zero_p (fill)))
memset (SCM_BYTEVECTOR_CONTENTS (ret), 0,
SCM_BYTEVECTOR_LENGTH (ret));
else
{
scm_t_array_handle h;
size_t i;
scm_array_get_handle (ret, &h);
for (i = 0; i < c_len; i++)
scm_array_handle_set (&h, i, fill);
scm_array_handle_release (&h);
}
return ret;
}
default:
scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, type, "uniform vector type");
return SCM_BOOL_F; /* not reached */
}
}
#undef FUNC_NAME
SCM_DEFINE (scm_srfi_4_vector_type_size, "srfi-4-vector-type-size", 1, 0, 0,
(SCM vec),
"Return the size, in bytes, of each element of a srfi-4 vector.")
#define FUNC_NAME s_scm_srfi_4_vector_type_size
{
SCM_VALIDATE_BYTEVECTOR (1, vec);
return scm_from_size_t (SCM_BYTEVECTOR_TYPE_SIZE (vec));
}
#undef FUNC_NAME
/* Initialization. */
void
scm_bootstrap_srfi_4 (void)
{
#define REGISTER(tag, TAG) \
scm_i_register_vector_constructor \
(scm_i_array_element_types[SCM_ARRAY_ELEMENT_TYPE_##TAG], \
scm_make_##tag##vector)
REGISTER (u8, U8);
REGISTER (s8, S8);
REGISTER (u16, U16);
REGISTER (s16, S16);
REGISTER (u32, U32);
REGISTER (s32, S32);
REGISTER (u64, U64);
REGISTER (s64, S64);
REGISTER (f32, F32);
REGISTER (f64, F64);
REGISTER (c32, C32);
REGISTER (c64, C64);
scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION,
"scm_init_srfi_4",
(scm_t_extension_init_func) scm_init_srfi_4,
NULL);
}
void
scm_init_srfi_4 (void)
{
#include "srfi-4.x"
}
/* End of srfi-4.c. */
|
