-/* This file defines the procedures related to one type of homogenous
+/* This file defines the procedures related to one type of uniform
numeric vector. It is included multiple time in srfi-4.c, once for
each type.
The C type of the elements, for example scm_t_uint8. The code
below will never do sizeof (CTYPE), thus you can use just 'float'
for the c32 type, for example.
+
+ When CTYPE is not defined, the functions using it are excluded.
*/
/* The first level does not expand macros in the arguments. */
SCM_DEFINE (F(scm_make_,TAG,vector), "make-"S(TAG)"vector", 1, 1, 0,
(SCM len, SCM fill),
- "Return a newly allocated homogeneous numeric vector which can\n"
+ "Return a newly allocated uniform numeric vector which can\n"
"hold @var{len} elements. If @var{fill} is given, it is used to\n"
"initialize the elements, otherwise the contents of the vector\n"
"is unspecified.")
}
#undef FUNC_NAME
-SCM
-F(scm_take_,TAG,vector) (const CTYPE *data, size_t n)
-{
- scm_gc_register_collectable_memory ((void *)data, n*uvec_sizes[TYPE],
- uvec_names[TYPE]);
- return take_uvec (TYPE, data, n);
-}
-
SCM_DEFINE (F(scm_,TAG,vector), S(TAG)"vector", 0, 0, 1,
(SCM l),
- "Return a newly allocated homogeneous numeric vector containing\n"
+ "Return a newly allocated uniform numeric vector containing\n"
"all argument values.")
#define FUNC_NAME s_F(scm_,TAG,vector)
{
SCM_DEFINE (F(scm_,TAG,vector_length), S(TAG)"vector-length", 1, 0, 0,
(SCM uvec),
- "Return the number of elements in the homogeneous numeric vector\n"
+ "Return the number of elements in the uniform numeric vector\n"
"@var{uvec}.")
#define FUNC_NAME s_F(scm_,TAG,vector_length)
{
SCM_DEFINE (F(scm_,TAG,vector_ref), S(TAG)"vector-ref", 2, 0, 0,
(SCM uvec, SCM index),
- "Return the element at @var{index} in the homogeneous numeric\n"
+ "Return the element at @var{index} in the uniform numeric\n"
"vector @var{uvec}.")
#define FUNC_NAME s_F(scm_,TAG,vector_ref)
{
SCM_DEFINE (F(scm_,TAG,vector_set_x), S(TAG)"vector-set!", 3, 0, 0,
(SCM uvec, SCM index, SCM value),
- "Set the element at @var{index} in the homogeneous numeric\n"
+ "Set the element at @var{index} in the uniform numeric\n"
"vector @var{uvec} to @var{value}. The return value is not\n"
"specified.")
#define FUNC_NAME s_F(scm_,TAG,vector_set_x)
SCM_DEFINE (F(scm_,TAG,vector_to_list), S(TAG)"vector->list", 1, 0, 0,
(SCM uvec),
- "Convert the homogeneous numeric vector @var{uvec} to a list.")
+ "Convert the uniform numeric vector @var{uvec} to a list.")
#define FUNC_NAME s_F(scm_,TAG,vector_to_list)
{
return uvec_to_list (TYPE, uvec);
SCM_DEFINE (F(scm_list_to_,TAG,vector), "list->"S(TAG)"vector", 1, 0, 0,
(SCM l),
- "Convert the list @var{l} to a numeric homogeneous vector.")
+ "Convert the list @var{l} to a numeric uniform vector.")
#define FUNC_NAME s_F(scm_list_to_,TAG,vector)
{
return list_to_uvec (TYPE, l);
SCM_DEFINE (F(scm_any_to_,TAG,vector), "any->"S(TAG)"vector", 1, 0, 0,
(SCM obj),
"Convert @var{obj}, which can be a list, vector, or\n"
- "homogenous vector, to a numeric homogenous vector of\n"
+ "uniform vector, to a numeric uniform vector of\n"
"type " S(TAG)".")
#define FUNC_NAME s_F(scm_any_to_,TAG,vector)
{
}
#undef FUNC_NAME
+#ifdef CTYPE
+
+SCM
+F(scm_take_,TAG,vector) (const CTYPE *data, size_t n)
+{
+ scm_gc_register_collectable_memory ((void *)data, n*uvec_sizes[TYPE],
+ uvec_names[TYPE]);
+ return take_uvec (TYPE, data, n);
+}
+
+const CTYPE *
+F(scm_array_handle_,TAG,_elements) (scm_t_array_handle *h)
+{
+ return F(scm_array_handle_,TAG,_writable_elements) (h);
+}
+
CTYPE *
-F(scm_,TAG,vector_elements) (SCM obj)
+F(scm_array_handle_,TAG,_writable_elements) (scm_t_array_handle *h)
+{
+ SCM vec = h->array;
+ if (SCM_I_ARRAYP (vec))
+ vec = SCM_I_ARRAY_V (vec);
+ uvec_assert (TYPE, vec);
+ if (TYPE == SCM_UVEC_C32 || TYPE == SCM_UVEC_C64)
+ return ((CTYPE *)SCM_UVEC_BASE (vec)) + 2*h->base;
+ else
+ return ((CTYPE *)SCM_UVEC_BASE (vec)) + h->base;
+}
+
+const CTYPE *
+F(scm_,TAG,vector_elements) (SCM uvec,
+ scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp)
+{
+ return F(scm_,TAG,vector_writable_elements) (uvec, h, lenp, incp);
+}
+
+CTYPE *
+F(scm_,TAG,vector_writable_elements) (SCM uvec,
+ scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp)
+{
+ scm_generalized_vector_get_handle (uvec, h);
+ if (lenp)
+ {
+ scm_t_array_dim *dim = scm_array_handle_dims (h);
+ *lenp = dim->ubnd - dim->lbnd + 1;
+ *incp = dim->inc;
+ }
+ return F(scm_array_handle_,TAG,_writable_elements) (h);
+}
+
+#endif
+
+static SCM
+F(,TAG,ref) (scm_t_array_handle *handle, ssize_t pos)
+{
+ return uvec_fast_ref (TYPE, handle->elements, pos);
+}
+
+static void
+F(,TAG,set) (scm_t_array_handle *handle, ssize_t pos, SCM val)
{
- uvec_assert (TYPE, obj);
- return (CTYPE *)SCM_UVEC_BASE (obj);
+ uvec_fast_set_x (TYPE, handle->writable_elements, pos, val);
}
#undef paste
HCoop / bpt / guile.git / blobdiff