/**
* Calculate distance between two iterators.
*/
int _hashtable_iterator_distance(_hashtable_iterator_t it_first, _hashtable_iterator_t it_second)
{
_hashtable_iterator_t it_iter;
int n_distance = 0;
if(_hashtable_iterator_before(it_first, it_second))
{
for(it_iter = it_first;
!_hashtable_iterator_equal(it_iter, it_second);
it_iter = _hashtable_iterator_next(it_iter))
{
n_distance++;
}
return n_distance;
}
else if(_hashtable_iterator_before(it_second, it_first))
{
for(it_iter = it_second;
!_hashtable_iterator_equal(it_iter, it_first);
it_iter = _hashtable_iterator_next(it_iter))
{
n_distance++;
}
return -n_distance;
}
else
{
return 0;
}
}
/*
* Erase a range of element in an hashtable.
*/
void _hashtable_erase_range(
_hashtable_t* pt_hashtable, _hashtable_iterator_t it_begin, _hashtable_iterator_t it_end)
{
_hashtable_iterator_t it_iter;
_hashtable_iterator_t it_next;
assert(pt_hashtable != NULL);
assert(_hashtable_is_inited(pt_hashtable));
assert(_hashtable_iterator_belong_to_hashtable(pt_hashtable, it_begin));
assert(_hashtable_iterator_belong_to_hashtable(pt_hashtable, it_end));
assert(_hashtable_iterator_equal(it_begin, it_end) || _hashtable_iterator_before(it_begin, it_end));
it_iter = it_next = it_begin;
if(!_hashtable_iterator_equal(it_next, _hashtable_end(pt_hashtable)))
{
it_next = _hashtable_iterator_next(it_next);
}
while(!_hashtable_iterator_equal(it_iter, it_end))
{
_hashtable_erase_pos(pt_hashtable, it_iter);
it_iter = it_next;
if(!_hashtable_iterator_equal(it_next, _hashtable_end(pt_hashtable)))
{
it_next = _hashtable_iterator_next(it_next);
}
}
}
/**
* Tests if the two rb tree are equal.
*/
bool_t _hashtable_equal(const _hashtable_t* cpt_first, const _hashtable_t* cpt_second)
{
_hashtable_iterator_t it_first;
_hashtable_iterator_t it_second;
bool_t b_less = false;
bool_t b_greater = false;
assert(cpt_first != NULL);
assert(cpt_second != NULL);
assert(_hashtable_is_inited(cpt_first));
assert(_hashtable_is_inited(cpt_second));
if(cpt_first == cpt_second)
{
return true;
}
/* check type */
if(!_hashtable_same_type_ex(cpt_first, cpt_second))
{
return false;
}
/* check size or bucket count*/
if(_hashtable_size(cpt_first) != _hashtable_size(cpt_second) ||
_hashtable_bucket_count(cpt_first) != _hashtable_bucket_count(cpt_second))
{
return false;
}
/* check each element */
for(it_first = _hashtable_begin(cpt_first),
it_second = _hashtable_begin(cpt_second);
!_hashtable_iterator_equal(it_first, _hashtable_end(cpt_first)) &&
!_hashtable_iterator_equal(it_second, _hashtable_end(cpt_second));
it_first = _hashtable_iterator_next(it_first),
it_second = _hashtable_iterator_next(it_second))
{
b_less = b_greater = _GET_HASHTABLE_TYPE_SIZE(cpt_first);
_GET_HASHTABLE_TYPE_LESS_FUNCTION(cpt_first)(
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_first))->_pby_data,
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_second))->_pby_data, &b_less);
_GET_HASHTABLE_TYPE_LESS_FUNCTION(cpt_first)(
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_second))->_pby_data,
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_first))->_pby_data, &b_greater);
if(b_less || b_greater)
{
return false;
}
}
assert(_hashtable_iterator_equal(it_first, _hashtable_end(cpt_first)) &&
_hashtable_iterator_equal(it_second, _hashtable_end(cpt_second)));
return true;
}
/**
* Test the first iterator is before the second.
*/
bool_t _hashtable_iterator_before(_hashtable_iterator_t it_first, _hashtable_iterator_t it_second)
{
_hashtable_iterator_t it_iter;
_hashtable_t* pt_hashtable = NULL;
assert(_hashtable_iterator_belong_to_hashtable(_HASHTABLE_ITERATOR_HASHTABLE(it_first), it_first));
assert(_hashtable_iterator_belong_to_hashtable(_HASHTABLE_ITERATOR_HASHTABLE(it_second), it_second));
assert(_HASHTABLE_ITERATOR_HASHTABLE(it_first) == _HASHTABLE_ITERATOR_HASHTABLE(it_second));
if(_HASHTABLE_ITERATOR_COREPOS(it_first) == _HASHTABLE_ITERATOR_COREPOS(it_second))
{
return false;
}
pt_hashtable = _HASHTABLE_ITERATOR_HASHTABLE(it_first);
for(it_iter = it_first;
!_hashtable_iterator_equal(it_iter, _hashtable_end(pt_hashtable));
it_iter = _hashtable_iterator_next(it_iter))
{
if(_hashtable_iterator_equal(it_iter, it_second))
{
return true;
}
}
if(_hashtable_iterator_equal(it_second, _hashtable_end(pt_hashtable)))
{
return true;
}
else
{
return false;
}
}
/**
* Return iterator reference next element.
*/
hash_set_iterator_t _hash_set_iterator_next(hash_set_iterator_t it_iter)
{
assert(_GET_HASH_SET_CONTAINER_TYPE(it_iter) == _HASH_SET_CONTAINER);
assert(_GET_HASH_SET_ITERATOR_TYPE(it_iter) == _BIDIRECTIONAL_ITERATOR);
return _hashtable_iterator_next(it_iter);
}
/**
* Tests if the first rb tree is less than the second rb tree.
*/
bool_t _hashtable_less(const _hashtable_t* cpt_first, const _hashtable_t* cpt_second)
{
_hashtable_iterator_t it_first;
_hashtable_iterator_t it_second;
bool_t b_less = false;
bool_t b_greater = false;
assert(cpt_first != NULL);
assert(cpt_second != NULL);
assert(_hashtable_is_inited(cpt_first));
assert(_hashtable_is_inited(cpt_second));
assert(_hashtable_same_type_ex(cpt_first, cpt_second));
/* check vector bucket count */
if(vector_size(&cpt_first->_vec_bucket) == vector_size(&cpt_second->_vec_bucket))
{
/* check each element */
for(it_first = _hashtable_begin(cpt_first),
it_second = _hashtable_begin(cpt_second);
!_hashtable_iterator_equal(it_first, _hashtable_end(cpt_first)) &&
!_hashtable_iterator_equal(it_second, _hashtable_end(cpt_second));
it_first = _hashtable_iterator_next(it_first),
it_second = _hashtable_iterator_next(it_second))
{
b_less = _GET_HASHTABLE_TYPE_SIZE(cpt_first);
_GET_HASHTABLE_TYPE_LESS_FUNCTION(cpt_first)(
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_first))->_pby_data,
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_second))->_pby_data, &b_less);
if(b_less)
{
return true;
}
b_greater = _GET_HASHTABLE_TYPE_SIZE(cpt_first);
_GET_HASHTABLE_TYPE_LESS_FUNCTION(cpt_first)(
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_second))->_pby_data,
((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_first))->_pby_data, &b_greater);
if(b_greater)
{
return false;
}
}
}
return _hashtable_size(cpt_first) < _hashtable_size(cpt_second) ? true : false;
}
/**
* Inserts an range of unique element into a hashtable.
*/
void _hashtable_insert_unique_range(
_hashtable_t* pt_hashtable, _hashtable_iterator_t it_begin, _hashtable_iterator_t it_end)
{
_hashtable_iterator_t it_iter;
assert(pt_hashtable != NULL);
assert(_hashtable_is_inited(pt_hashtable));
assert(_hashtable_same_hashtable_iterator_type(pt_hashtable, it_begin));
assert(_hashtable_same_hashtable_iterator_type(pt_hashtable, it_end));
assert(_hashtable_iterator_equal(it_begin, it_end) || _hashtable_iterator_before(it_begin, it_end));
for(it_iter = it_begin; !_hashtable_iterator_equal(it_iter, it_end); it_iter = _hashtable_iterator_next(it_iter))
{
_hashtable_insert_unique(pt_hashtable, ((_hashnode_t*)_GET_HASHTABLE_COREPOS(it_iter))->_pby_data);
}
}
/**
* Initialize hashtable container with hashtable.
*/
void _hashtable_init_copy(_hashtable_t* pt_dest, const _hashtable_t* cpt_src)
{
_hashtable_iterator_t it_iter;
assert(pt_dest != NULL);
assert(cpt_src != NULL);
assert(_hashtable_is_created(pt_dest));
assert(_hashtable_is_inited(cpt_src));
assert(_hashtable_same_type(pt_dest, cpt_src));
/* initialize the dest hashtable with src hashtable attribute */
_hashtable_init(pt_dest, _hashtable_bucket_count(cpt_src), cpt_src->_ufun_hash, cpt_src->_bfun_compare);
/* insert node from src to dest */
for (it_iter = _hashtable_begin(cpt_src);
!_hashtable_iterator_equal(it_iter, _hashtable_end(cpt_src));
it_iter = _hashtable_iterator_next(it_iter)) {
_hashtable_insert_equal(pt_dest, _hashtable_iterator_get_pointer_ignore_cstr(it_iter));
}
}
/**
* Assign hashtable container.
*/
void _hashtable_assign(_hashtable_t* pt_dest, const _hashtable_t* cpt_src)
{
_hashtable_iterator_t it_iter;
assert(pt_dest != NULL);
assert(cpt_src != NULL);
assert(_hashtable_is_inited(pt_dest));
assert(_hashtable_is_inited(cpt_src));
assert(_hashtable_same_type_ex(pt_dest, cpt_src));
/* clear all elements */
_hashtable_clear(pt_dest);
/* insert node from src to dest */
for (it_iter = _hashtable_begin(cpt_src);
!_hashtable_iterator_equal(it_iter, _hashtable_end(cpt_src));
it_iter = _hashtable_iterator_next(it_iter)) {
_hashtable_insert_equal(pt_dest, _hashtable_iterator_get_pointer_ignore_cstr(it_iter));
}
}
