void deleteRec(int offset, int length)
{
//--- delete record data ---
memset(this->data[offset], 0, length);
//--- move records behind the deleted record forward ---
//--- & update the slot directory with their new offset value ---
relocateRec(offset, length);
//update usedPtr, freeSpace ---
this->usedPtr = this->usedPtr + length;
this->freeSpace = this->freeSpace + length;
}
void HFPage::deleteRec(int offset, int length)
{
//--- delete record data ---
memset(&(this->data[offset]), 0, length);
//--- move records behind the deleted record forward ---
//--- & update the slot directory with their new offset value ---
relocateRec(offset, length);
//update usedPtr, freeSpace ---
this->usedPtr = this->usedPtr + length;
if(this->slotCnt == 0)
this->freeSpace = MAX_SPACE - DPFIXED;
else
this->freeSpace = this->usedPtr - (this->slotCnt - 1) * sizeof(slot_t);
}
