/* Sequential list data type implemented by an array.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006-2007 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2006.
This program is free software; you can redistribute it and/or modify
gl_array_create_empty (gl_list_implementation_t implementation,
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->count = 0;
gl_array_create (gl_list_implementation_t implementation,
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
}
static size_t
-gl_array_indexof (gl_list_t list, const void *elt)
+gl_array_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;
if (equals != NULL)
{
size_t i;
- for (i = 0;;)
+ for (i = start_index;;)
{
if (equals (elt, list->elements[i]))
return i;
i++;
- if (i == count)
+ if (i == end_index)
break;
}
}
{
size_t i;
- for (i = 0;;)
+ for (i = start_index;;)
{
if (elt == list->elements[i])
return i;
i++;
- if (i == count)
+ if (i == end_index)
break;
}
}
}
static gl_list_node_t
-gl_array_search (gl_list_t list, const void *elt)
+gl_array_search_from_to (gl_list_t list, size_t start_index, size_t end_index,
+ const void *elt)
{
- size_t index = gl_array_indexof (list, elt);
+ size_t index = gl_array_indexof_from_to (list, start_index, end_index, elt);
return INDEX_TO_NODE (index);
}
abort ();
position = index;
elements = list->elements;
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[position]);
for (i = position + 1; i < count; i++)
elements[i - 1] = elements[i];
list->count = count - 1;
/* Invalid argument. */
abort ();
elements = list->elements;
+ if (list->base.dispose_fn != NULL)
+ list->base.dispose_fn (elements[position]);
for (i = position + 1; i < count; i++)
elements[i - 1] = elements[i];
list->count = count - 1;
static bool
gl_array_remove (gl_list_t list, const void *elt)
{
- size_t position = gl_array_indexof (list, elt);
+ size_t position = gl_array_indexof_from_to (list, 0, list->count, elt);
if (position == (size_t)(-1))
return false;
else
gl_array_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;
+
+ do
+ dispose (*elements++);
+ while (--count > 0);
+ }
+ }
+ free (list->elements);
+ }
free (list);
}
abort ();
/* The last returned element was removed. */
iterator->count--;
- iterator->p--;
- iterator->q--;
+ iterator->p = (const void **) iterator->p - 1;
+ iterator->q = (const void **) iterator->q - 1;
}
if (iterator->p < iterator->q)
{
/* ---------------------- Sorted gl_list_t Data Type ---------------------- */
static size_t
-gl_array_sortedlist_indexof (gl_list_t list, gl_listelement_compar_fn compar,
- const void *elt)
+gl_array_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_array_sortedlist_indexof (gl_list_t list, gl_listelement_compar_fn compar,
+ const void *elt)
+{
+ return gl_array_sortedlist_indexof_from_to (list, compar, 0, list->count,
+ elt);
+}
+
+static gl_list_node_t
+gl_array_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_array_sortedlist_indexof_from_to (list, compar, low, high, elt);
+ return INDEX_TO_NODE (index);
+}
+
static gl_list_node_t
gl_array_sortedlist_search (gl_list_t list, gl_listelement_compar_fn compar,
const void *elt)
{
- size_t index = gl_array_sortedlist_indexof (list, compar, elt);
+ size_t index =
+ gl_array_sortedlist_indexof_from_to (list, compar, 0, list->count, elt);
return INDEX_TO_NODE (index);
}
gl_array_previous_node,
gl_array_get_at,
gl_array_set_at,
- gl_array_search,
- gl_array_indexof,
+ gl_array_search_from_to,
+ gl_array_indexof_from_to,
gl_array_add_first,
gl_array_add_last,
gl_array_add_before,
gl_array_iterator_next,
gl_array_iterator_free,
gl_array_sortedlist_search,
+ gl_array_sortedlist_search_from_to,
gl_array_sortedlist_indexof,
+ gl_array_sortedlist_indexof_from_to,
gl_array_sortedlist_add,
gl_array_sortedlist_remove
};
projects / gnulib.git / blobdiff