libguile/generalized-vectors.c

   1 /* Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004,
   2  *   2005, 2006, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public License
   6  * as published by the Free Software Foundation; either version 3 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  */
  19
  20
  21 \f
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include <config.h>
  25 #endif
  26
  27 #include "libguile/_scm.h"
  28 #include "libguile/__scm.h"
  29
  30 #include "libguile/array-handle.h"
  31 #include "libguile/generalized-arrays.h"
  32 #include "libguile/generalized-vectors.h"
  33
  34
  35 struct scm_t_vector_ctor
  36 {
  37   SCM tag;
  38   SCM (*ctor)(SCM, SCM);
  39 };
  40
  41 #define VECTOR_CTORS_N_STATIC_ALLOC 20
  42 static struct scm_t_vector_ctor vector_ctors[VECTOR_CTORS_N_STATIC_ALLOC];
  43 static int num_vector_ctors_registered = 0;
  44
  45 void
  46 scm_i_register_vector_constructor (SCM type, SCM (*ctor)(SCM, SCM))
  47 {
  48   if (num_vector_ctors_registered >= VECTOR_CTORS_N_STATIC_ALLOC)
  49     /* need to increase VECTOR_CTORS_N_STATIC_ALLOC, buster */
  50     abort ();
  51   else
  52     {
  53       vector_ctors[num_vector_ctors_registered].tag = type;
  54       vector_ctors[num_vector_ctors_registered].ctor = ctor;
  55       num_vector_ctors_registered++;
  56     }
  57 }
  58
  59 SCM_DEFINE (scm_make_generalized_vector, "make-generalized-vector", 2, 1, 0,
  60             (SCM type, SCM len, SCM fill),
  61             "Make a generalized vector")
  62 #define FUNC_NAME s_scm_make_generalized_vector
  63 {
  64   int i;
  65   for (i = 0; i < num_vector_ctors_registered; i++)
  66     if (scm_is_eq (vector_ctors[i].tag, type))
  67       return vector_ctors[i].ctor(len, fill);
  68   scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, type, "array type");
  69 }
  70 #undef FUNC_NAME
  71
  72 int
  73 scm_is_generalized_vector (SCM obj)
  74 {
  75   int ret = 0;
  76   if (scm_is_array (obj))
  77     {
  78       scm_t_array_handle h;
  79       scm_array_get_handle (obj, &h);
  80       ret = scm_array_handle_rank (&h) == 1;
  81       scm_array_handle_release (&h);
  82     }
  83   return ret;
  84 }
  85
  86 #define SCM_VALIDATE_VECTOR_WITH_HANDLE(pos, val, handle)   \
  87   scm_generalized_vector_get_handle (val, handle)
  88
  89
  90 void
  91 scm_generalized_vector_get_handle (SCM vec, scm_t_array_handle *h)
  92 {
  93   scm_array_get_handle (vec, h);
  94   if (scm_array_handle_rank (h) != 1)
  95     {
  96       scm_array_handle_release (h);
  97       scm_wrong_type_arg_msg (NULL, 0, vec, "vector");
  98     }
  99 }
 100
 101 size_t
 102 scm_c_generalized_vector_length (SCM v)
 103 {
 104   return scm_c_array_length (v);
 105 }
 106
 107 SCM
 108 scm_c_generalized_vector_ref (SCM v, ssize_t idx)
 109 {
 110   return scm_c_array_ref_1 (v, idx);
 111 }
 112
 113 void
 114 scm_c_generalized_vector_set_x (SCM v, ssize_t idx, SCM val)
 115 {
 116   scm_c_array_set_1_x (v, val, idx);
 117 }
 118
 119 void
 120 scm_init_generalized_vectors ()
 121 {
 122 #include "libguile/generalized-vectors.x"
 123 }
 124
 125 /*
 126   Local Variables:
 127   c-file-style: "gnu"
 128   End:
 129 */