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/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004, 2005, 2006, 2009, 2010, 2011 Free Software Foundation, Inc.
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "libguile/_scm.h"
#include "libguile/__scm.h"
#include "libguile/array-handle.h"
#include "libguile/generalized-arrays.h"
#include "libguile/generalized-vectors.h"
struct scm_t_vector_ctor
{
SCM tag;
SCM (*ctor)(SCM, SCM);
};
#define VECTOR_CTORS_N_STATIC_ALLOC 20
static struct scm_t_vector_ctor vector_ctors[VECTOR_CTORS_N_STATIC_ALLOC];
static int num_vector_ctors_registered = 0;
void
scm_i_register_vector_constructor (SCM type, SCM (*ctor)(SCM, SCM))
{
if (num_vector_ctors_registered >= VECTOR_CTORS_N_STATIC_ALLOC)
/* need to increase VECTOR_CTORS_N_STATIC_ALLOC, buster */
abort ();
else
{
vector_ctors[num_vector_ctors_registered].tag = type;
vector_ctors[num_vector_ctors_registered].ctor = ctor;
num_vector_ctors_registered++;
}
}
SCM_DEFINE (scm_make_generalized_vector, "make-generalized-vector", 2, 1, 0,
(SCM type, SCM len, SCM fill),
"Make a generalized vector")
#define FUNC_NAME s_scm_make_generalized_vector
{
int i;
for (i = 0; i < num_vector_ctors_registered; i++)
if (scm_is_eq (vector_ctors[i].tag, type))
return vector_ctors[i].ctor(len, fill);
scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, type, "array type");
}
#undef FUNC_NAME
int
scm_is_generalized_vector (SCM obj)
{
int ret = 0;
if (scm_is_array (obj))
{
scm_t_array_handle h;
scm_array_get_handle (obj, &h);
ret = scm_array_handle_rank (&h) == 1;
scm_array_handle_release (&h);
}
return ret;
}
SCM_DEFINE (scm_generalized_vector_p, "generalized-vector?", 1, 0, 0,
(SCM obj),
"Return @code{#t} if @var{obj} is a vector, string,\n"
"bitvector, or uniform numeric vector.")
#define FUNC_NAME s_scm_generalized_vector_p
{
return scm_from_bool (scm_is_generalized_vector (obj));
}
#undef FUNC_NAME
#define SCM_VALIDATE_VECTOR_WITH_HANDLE(pos, val, handle) \
scm_generalized_vector_get_handle (val, handle)
void
scm_generalized_vector_get_handle (SCM vec, scm_t_array_handle *h)
{
scm_array_get_handle (vec, h);
if (scm_array_handle_rank (h) != 1)
{
scm_array_handle_release (h);
scm_wrong_type_arg_msg (NULL, 0, vec, "vector");
}
}
size_t
scm_c_generalized_vector_length (SCM v)
{
scm_t_array_handle h;
size_t ret;
scm_generalized_vector_get_handle (v, &h);
ret = h.dims[0].ubnd - h.dims[0].lbnd + 1;
scm_array_handle_release (&h);
return ret;
}
SCM_DEFINE (scm_generalized_vector_length, "generalized-vector-length", 1, 0, 0,
(SCM v),
"Return the length of the generalized vector @var{v}.")
#define FUNC_NAME s_scm_generalized_vector_length
{
return scm_from_size_t (scm_c_generalized_vector_length (v));
}
#undef FUNC_NAME
SCM
scm_c_generalized_vector_ref (SCM v, size_t idx)
{
scm_t_array_handle h;
size_t pos;
SCM ret;
scm_generalized_vector_get_handle (v, &h);
pos = h.base + h.dims[0].lbnd + idx * h.dims[0].inc;
ret = h.impl->vref (&h, pos);
scm_array_handle_release (&h);
return ret;
}
SCM_DEFINE (scm_generalized_vector_ref, "generalized-vector-ref", 2, 0, 0,
(SCM v, SCM idx),
"Return the element at index @var{idx} of the\n"
"generalized vector @var{v}.")
#define FUNC_NAME s_scm_generalized_vector_ref
{
return scm_c_generalized_vector_ref (v, scm_to_size_t (idx));
}
#undef FUNC_NAME
void
scm_c_generalized_vector_set_x (SCM v, size_t idx, SCM val)
{
scm_t_array_handle h;
size_t pos;
scm_generalized_vector_get_handle (v, &h);
pos = h.base + h.dims[0].lbnd + idx * h.dims[0].inc;
h.impl->vset (&h, pos, val);
scm_array_handle_release (&h);
}
SCM_DEFINE (scm_generalized_vector_set_x, "generalized-vector-set!", 3, 0, 0,
(SCM v, SCM idx, SCM val),
"Set the element at index @var{idx} of the\n"
"generalized vector @var{v} to @var{val}.")
#define FUNC_NAME s_scm_generalized_vector_set_x
{
scm_c_generalized_vector_set_x (v, scm_to_size_t (idx), val);
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
SCM_DEFINE (scm_generalized_vector_to_list, "generalized-vector->list", 1, 0, 0,
(SCM v),
"Return a new list whose elements are the elements of the\n"
"generalized vector @var{v}.")
#define FUNC_NAME s_scm_generalized_vector_to_list
{
SCM ret = SCM_EOL;
ssize_t pos, i = 0;
scm_t_array_handle h;
scm_generalized_vector_get_handle (v, &h);
for (pos = h.dims[0].ubnd, i = (h.dims[0].ubnd - h.dims[0].lbnd);
i >= 0;
pos -= h.dims[0].inc, i--)
ret = scm_cons (h.impl->vref (&h, pos), ret);
scm_array_handle_release (&h);
return ret;
}
#undef FUNC_NAME
void
scm_init_generalized_vectors ()
{
#include "libguile/generalized-vectors.x"
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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