void _quickSort( int* array, int start, int end, unsigned int* cost )
{
if (start >= end)
return;
int left = start, right = end, val = array[start];
while (left < right)
{
while(left < right && array[right] >= val)
--right;
if(left < right)
{
(*cost)++;
array[left++] = array[right];
}
while(left < right && array[left] < val)
++left;
if(left < right)
{
(*cost)++;
array[right--] = array[left];
}
}
array[right] = val;
(*cost)++;
_quickSort(array, start, left-1, cost);
_quickSort(array, left + 1, end, cost);
return;
}
/* A recursive implementation of quicksort for linked list */
void _quickSort(struct Node* l, struct Node *h)
{
if (h != NULL && l != h && l != h->next)
{
struct Node *p = partition(l, h);
_quickSort(l, p->prev);
_quickSort(p->next, h);
}
}
// The main function to sort a linked list. It mainly calls _quickSort()
void quickSort(struct Node *head)
{
// Find last node
struct Node *h = lastNode(head);
// Call the recursive QuickSort
_quickSort(head, h);
}
unsigned int quickSort( int* array, int arraySize )
{
if (arraySize < 0)
return 0;
unsigned int cost = 0;
_quickSort(array, 0, arraySize-1, &cost);
return cost;
}
int32 Vector::sort(Comparator* comp)
{
Comparator* cUse = NULL;
if (!m_uCount)
return FAILURE;
if (!comp && !m_comp)
return FAILURE;
if (comp)
cUse = comp;
else
cUse = m_comp;
_quickSort(0, m_uCount - 1, cUse);
if (!m_comp)
m_comp = comp;
m_bSorted = true;
return SUCCESS;
}
void Vector::_quickSort(int32 s, int32 d, Comparator* c)
{
div_t pos = div(s + d, 2);
int32 ret = 0;
int32 i = s;
int32 j = d;
VectorSlot* vsX = (VectorSlot*) m_pvDB[pos.quot];
if (!vsX || (vsX && vsX->bEmpty))
return;
char* strX = vsX->dbData.toString();
uint32 x_sz = vsX->dbData.getCount();
do {
VectorSlot* vsI = NULL;
VectorSlot* vsJ = NULL;
char* strI = NULL;
uint32 i_sz = 0;
char* strJ = NULL;
uint32 j_sz = 0;
while (1) {
vsI = (VectorSlot *) m_pvDB[i];
if (vsI && !vsI->bEmpty) {
strI = vsI->dbData.toString();
i_sz = vsI->dbData.getCount();
ret = c->compare(strI, i_sz, strX, x_sz);
if (ret >= 0)
break;
}
i++;
}
while (1) {
vsJ = (VectorSlot *) m_pvDB[j];
if (vsJ && !vsJ->bEmpty) {
strJ = vsJ->dbData.toString();
j_sz = vsJ->dbData.getCount();
ret = c->compare(strX, x_sz, strJ, j_sz);
if (ret >= 0)
break;
}
j--;
}
if (i <= j) {
m_pvDB.set(i, vsJ);
m_pvDB.set(j, vsI);
i++;
j--;
}
} while (i <= j);
if (s < j)
_quickSort(s, j, c);
if (i < d)
_quickSort(i, d, c);
}