/* Sequential list data type implemented by a circular array.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006-2008 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2006.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
static gl_list_t
gl_carray_create_empty (gl_list_implementation_t implementation,
- gl_listelement_equals_fn equals_fn,
- gl_listelement_hashcode_fn hashcode_fn,
- bool allow_duplicates)
+ gl_listelement_equals_fn equals_fn,
+ gl_listelement_hashcode_fn hashcode_fn,
+ gl_listelement_dispose_fn dispose_fn,
+ bool allow_duplicates)
{
- struct gl_list_impl *list =
- (struct gl_list_impl *) xmalloc (sizeof (struct gl_list_impl));
+ struct gl_list_impl *list = XMALLOC (struct gl_list_impl);
list->base.vtable = implementation;
list->base.equals_fn = equals_fn;
list->base.hashcode_fn = hashcode_fn;
+ list->base.dispose_fn = dispose_fn;
list->base.allow_duplicates = allow_duplicates;
list->elements = NULL;
list->offset = 0;
static gl_list_t
gl_carray_create (gl_list_implementation_t implementation,
- gl_listelement_equals_fn equals_fn,
- gl_listelement_hashcode_fn hashcode_fn,
- bool allow_duplicates,
- size_t count, const void **contents)
+ gl_listelement_equals_fn equals_fn,
+ gl_listelement_hashcode_fn hashcode_fn,
+ gl_listelement_dispose_fn dispose_fn,
+ bool allow_duplicates,
+ size_t count, const void **contents)
{
- struct gl_list_impl *list =
- (struct gl_list_impl *) xmalloc (sizeof (struct gl_list_impl));
+ struct gl_list_impl *list = XMALLOC (struct gl_list_impl);
list->base.vtable = implementation;
list->base.equals_fn = equals_fn;
list->base.hashcode_fn = hashcode_fn;
+ list->base.dispose_fn = dispose_fn;
list->base.allow_duplicates = allow_duplicates;
if (count > 0)
{
- list->elements =
- (const void **) xmalloc (count * sizeof (const void *));
+ list->elements = XNMALLOC (count, const void *);
memcpy (list->elements, contents, count * sizeof (const void *));
}
else
return list->elements[i];
}
+static void
+gl_carray_node_set_value (gl_list_t list, gl_list_node_t node, const void *elt)
+{
+ uintptr_t index = NODE_TO_INDEX (node);
+ size_t i;
+
+ if (!(index < list->count))
+ /* Invalid argument. */
+ abort ();
+ i = list->offset + index;
+ if (i >= list->allocated)
+ i -= list->allocated;
+ list->elements[i] = elt;
+}
+
static gl_list_node_t
gl_carray_next_node (gl_list_t list, gl_list_node_t node)
{
}
static size_t
-gl_carray_indexof (gl_list_t list, const void *elt)
+gl_carray_indexof_from_to (gl_list_t list, size_t start_index, size_t end_index,
+ const void *elt)
{
size_t count = list->count;
- if (count > 0)
+
+ if (!(start_index <= end_index && end_index <= count))
+ /* Invalid arguments. */
+ abort ();
+
+ if (start_index < end_index)
{
gl_listelement_equals_fn equals = list->base.equals_fn;
size_t allocated = list->allocated;
size_t i_end;
- i_end = list->offset + list->count;
+ i_end = list->offset + end_index;
if (i_end >= allocated)
i_end -= allocated;
{
size_t i;
- for (i = list->offset;;)
+ i = list->offset + start_index;
+ if (i >= allocated) /* can only happen if start_index > 0 */
+ i -= allocated;
+
+ for (;;)
{
if (equals (elt, list->elements[i]))
return (i >= list->offset ? i : i + allocated) - list->offset;
{
size_t i;
- for (i = list->offset;;)
+ i = list->offset + start_index;
+ if (i >= allocated) /* can only happen if start_index > 0 */
+ i -= allocated;
+
+ for (;;)
{
if (elt == list->elements[i])
return (i >= list->offset ? i : i + allocated) - list->offset;
}
static gl_list_node_t
-gl_carray_search (gl_list_t list, const void *elt)
+gl_carray_search_from_to (gl_list_t list, size_t start_index, size_t end_index,
+ const void *elt)
{
- size_t index = gl_carray_indexof (list, elt);
+ size_t index = gl_carray_indexof_from_to (list, start_index, end_index, elt);
return INDEX_TO_NODE (index);
}
/* Here we must have list->offset > 0, hence list->allocated > 0. */
size_t i1 = list->allocated - 1;
i2 -= list->allocated;
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[i2]);
for (i = i2; i > 0; i--)
elements[i] = elements[i - 1];
elements[0] = elements[i1];
}
else
{
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[i2]);
for (i = i2; i > i0; i--)
elements[i] = elements[i - 1];
}
{
i1 -= list->allocated;
i3 -= list->allocated;
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[i1]);
for (i = i1; i < i3; i++)
elements[i] = elements[i + 1];
}
/* Here we must have list->offset > 0, hence list->allocated > 0. */
size_t i2 = list->allocated - 1;
i3 -= list->allocated;
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[i1]);
for (i = i1; i < i2; i++)
elements[i] = elements[i + 1];
elements[i2] = elements[0];
}
else
{
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[i1]);
for (i = i1; i < i3; i++)
elements[i] = elements[i + 1];
}
static bool
gl_carray_remove (gl_list_t list, const void *elt)
{
- size_t position = gl_carray_indexof (list, elt);
+ size_t position = gl_carray_indexof_from_to (list, 0, list->count, elt);
if (position == (size_t)(-1))
return false;
else
gl_carray_list_free (gl_list_t list)
{
if (list->elements != NULL)
- free (list->elements);
+ {
+ if (list->base.dispose_fn != NULL)
+ {
+ size_t count = list->count;
+
+ if (count > 0)
+ {
+ gl_listelement_dispose_fn dispose = list->base.dispose_fn;
+ const void **elements = list->elements;
+ size_t i1 = list->offset;
+ size_t i3 = list->offset + count - 1;
+
+ if (i3 >= list->allocated)
+ {
+ /* Here we must have list->offset > 0, hence
+ list->allocated > 0. */
+ size_t i2 = list->allocated - 1;
+ size_t i;
+
+ i3 -= list->allocated;
+ for (i = i1; i <= i2; i++)
+ dispose (elements[i]);
+ for (i = 0; i <= i3; i++)
+ dispose (elements[i]);
+ }
+ else
+ {
+ size_t i;
+
+ for (i = i1; i <= i3; i++)
+ dispose (elements[i]);
+ }
+ }
+ }
+ free (list->elements);
+ }
free (list);
}
/* ---------------------- Sorted gl_list_t Data Type ---------------------- */
static size_t
-gl_carray_sortedlist_indexof (gl_list_t list, gl_listelement_compar_fn compar,
- const void *elt)
+gl_carray_sortedlist_indexof_from_to (gl_list_t list,
+ gl_listelement_compar_fn compar,
+ size_t low, size_t high,
+ const void *elt)
{
- size_t count = list->count;
-
- if (count > 0)
+ if (!(low <= high && high <= list->count))
+ /* Invalid arguments. */
+ abort ();
+ if (low < high)
{
- size_t low = 0;
- size_t high = count;
-
/* At each loop iteration, low < high; for indices < low the values
are smaller than ELT; for indices >= high the values are greater
than ELT. So, if the element occurs in the list, it is at
return (size_t)(-1);
}
+static size_t
+gl_carray_sortedlist_indexof (gl_list_t list, gl_listelement_compar_fn compar,
+ const void *elt)
+{
+ return gl_carray_sortedlist_indexof_from_to (list, compar, 0, list->count,
+ elt);
+}
+
+static gl_list_node_t
+gl_carray_sortedlist_search_from_to (gl_list_t list,
+ gl_listelement_compar_fn compar,
+ size_t low, size_t high,
+ const void *elt)
+{
+ size_t index =
+ gl_carray_sortedlist_indexof_from_to (list, compar, low, high, elt);
+ return INDEX_TO_NODE (index);
+}
+
static gl_list_node_t
gl_carray_sortedlist_search (gl_list_t list, gl_listelement_compar_fn compar,
const void *elt)
{
- size_t index = gl_carray_sortedlist_indexof (list, compar, elt);
+ size_t index =
+ gl_carray_sortedlist_indexof_from_to (list, compar, 0, list->count, elt);
return INDEX_TO_NODE (index);
}
gl_carray_create,
gl_carray_size,
gl_carray_node_value,
+ gl_carray_node_set_value,
gl_carray_next_node,
gl_carray_previous_node,
gl_carray_get_at,
gl_carray_set_at,
- gl_carray_search,
- gl_carray_indexof,
+ gl_carray_search_from_to,
+ gl_carray_indexof_from_to,
gl_carray_add_first,
gl_carray_add_last,
gl_carray_add_before,
gl_carray_iterator_next,
gl_carray_iterator_free,
gl_carray_sortedlist_search,
+ gl_carray_sortedlist_search_from_to,
gl_carray_sortedlist_indexof,
+ gl_carray_sortedlist_indexof_from_to,
gl_carray_sortedlist_add,
gl_carray_sortedlist_remove
};