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Diffstat (limited to 'libguile/generalized-vectors.c')
-rw-r--r-- | libguile/generalized-vectors.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/libguile/generalized-vectors.c b/libguile/generalized-vectors.c new file mode 100644 index 000000000..2d437a475 --- /dev/null +++ b/libguile/generalized-vectors.c @@ -0,0 +1,201 @@ +/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004, 2005, 2006, 2009 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 (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; + SCM ret; + scm_generalized_vector_get_handle (v, &h); + ret = h.impl->vref (&h, idx); + 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; + scm_generalized_vector_get_handle (v, &h); + h.impl->vset (&h, idx, 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); + // FIXME CHECKME + for (pos = h.dims[0].ubnd, i = (h.dims[0].ubnd - h.dims[0].lbnd + 1); + i >= 0; + pos += h.dims[0].inc) + 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: +*/ |