static void CPLHashSetRehash(CPLHashSet* set)
{
int nNewAllocatedSize = anPrimes[set->nIndiceAllocatedSize];
CPLList** newTabList = (CPLList**) CPLCalloc(sizeof(CPLList*), nNewAllocatedSize);
#ifdef HASH_DEBUG
CPLDebug("CPLHASH", "hashSet=%p, nSize=%d, nCollisions=%d, fCollisionRate=%.02f",
set, set->nSize, set->nCollisions, set->nCollisions * 100.0 / set->nSize);
set->nCollisions = 0;
#endif
for(int i=0;i<set->nAllocatedSize;i++)
{
CPLList* cur = set->tabList[i];
while(cur)
{
unsigned long nNewHashVal = set->fnHashFunc(cur->pData) % nNewAllocatedSize;
#ifdef HASH_DEBUG
if (newTabList[nNewHashVal])
set->nCollisions ++;
#endif
newTabList[nNewHashVal] = CPLListInsert(newTabList[nNewHashVal], cur->pData, 0);
cur = cur->psNext;
}
CPLListDestroy(set->tabList[i]);
}
CPLFree(set->tabList);
set->tabList = newTabList;
set->nAllocatedSize = nNewAllocatedSize;
}
int CPLHashSetInsert(CPLHashSet* set, void* elt)
{
CPLAssert(set != NULL);
void** pElt = CPLHashSetFindPtr(set, elt);
if (pElt)
{
if (set->fnFreeEltFunc)
set->fnFreeEltFunc(*pElt);
*pElt = elt;
return FALSE;
}
if (set->nSize >= 2 * set->nAllocatedSize / 3)
{
set->nIndiceAllocatedSize++;
CPLHashSetRehash(set);
}
unsigned long nHashVal = set->fnHashFunc(elt) % set->nAllocatedSize;
#ifdef HASH_DEBUG
if (set->tabList[nHashVal])
set->nCollisions ++;
#endif
set->tabList[nHashVal] = CPLListInsert(set->tabList[nHashVal], (void*) elt, 0);
set->nSize++;
return TRUE;
}
void object::test<1>()
{
CPLList* list;
list = CPLListInsert(NULL, (void*)0, 0);
ensure(CPLListCount(list) == 1);
list = CPLListRemove(list, 2);
ensure(CPLListCount(list) == 1);
list = CPLListRemove(list, 1);
ensure(CPLListCount(list) == 1);
list = CPLListRemove(list, 0);
ensure(CPLListCount(list) == 0);
list = NULL;
list = CPLListInsert(NULL, (void*)0, 2);
ensure(CPLListCount(list) == 3);
list = CPLListRemove(list, 2);
ensure(CPLListCount(list) == 2);
list = CPLListRemove(list, 1);
ensure(CPLListCount(list) == 1);
list = CPLListRemove(list, 0);
ensure(CPLListCount(list) == 0);
list = NULL;
list = CPLListAppend(list, (void*)1);
ensure(CPLListGet(list,0) == list);
ensure(CPLListGet(list,1) == NULL);
list = CPLListAppend(list, (void*)2);
list = CPLListInsert(list, (void*)3, 2);
ensure(CPLListCount(list) == 3);
CPLListDestroy(list);
list = NULL;
list = CPLListAppend(list, (void*)1);
list = CPLListAppend(list, (void*)2);
list = CPLListInsert(list, (void*)4, 3);
CPLListGet(list,2)->pData = (void*)3;
ensure(CPLListCount(list) == 4);
ensure(CPLListGet(list,0)->pData == (void*)1);
ensure(CPLListGet(list,1)->pData == (void*)2);
ensure(CPLListGet(list,2)->pData == (void*)3);
ensure(CPLListGet(list,3)->pData == (void*)4);
CPLListDestroy(list);
list = NULL;
list = CPLListInsert(list, (void*)4, 1);
CPLListGet(list,0)->pData = (void*)2;
list = CPLListInsert(list, (void*)1, 0);
list = CPLListInsert(list, (void*)3, 2);
ensure(CPLListCount(list) == 4);
ensure(CPLListGet(list,0)->pData == (void*)1);
ensure(CPLListGet(list,1)->pData == (void*)2);
ensure(CPLListGet(list,2)->pData == (void*)3);
ensure(CPLListGet(list,3)->pData == (void*)4);
list = CPLListRemove(list, 1);
list = CPLListRemove(list, 1);
list = CPLListRemove(list, 0);
list = CPLListRemove(list, 0);
ensure(list == NULL);
}