rlm@1: // Common/MyVector.cpp
rlm@1: 
rlm@1: #include "StdAfx.h"
rlm@1: 
rlm@1: #include <string.h>
rlm@1: 
rlm@1: #include "MyVector.h"
rlm@1: 
rlm@1: CBaseRecordVector::~CBaseRecordVector() { ClearAndFree(); }
rlm@1: 
rlm@1: void CBaseRecordVector::ClearAndFree()
rlm@1: {
rlm@1:   Clear();
rlm@1:   delete []((unsigned char *)_items);
rlm@1:   _capacity = 0;
rlm@1:   _size = 0;
rlm@1:   _items = 0;
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::Clear() { DeleteFrom(0); }
rlm@1: void CBaseRecordVector::DeleteBack() { Delete(_size - 1); }
rlm@1: void CBaseRecordVector::DeleteFrom(int index)
rlm@1: {
rlm@1: 	Delete(index, _size - index);
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::ReserveOnePosition()
rlm@1: {
rlm@1:   if (_size != _capacity)
rlm@1:     return;
rlm@1:   int delta = 1;
rlm@1:   if (_capacity >= 64)
rlm@1:     delta = _capacity / 4;
rlm@1:   else if (_capacity >= 8)
rlm@1:     delta = 8;
rlm@1:   Reserve(_capacity + delta);
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::Reserve(int newCapacity)
rlm@1: {
rlm@1:   // if (newCapacity <= _capacity)
rlm@1:   if (newCapacity == _capacity)
rlm@1:     return;
rlm@1:   if ((unsigned)newCapacity >= ((unsigned)1 << (sizeof(unsigned) * 8 - 1)))
rlm@1:     throw 1052353;
rlm@1:   size_t newSize = (size_t)(unsigned)newCapacity * _itemSize;
rlm@1:   if (newSize / _itemSize != (size_t)(unsigned)newCapacity)
rlm@1:     throw 1052354;
rlm@1:   unsigned char *p = NULL;
rlm@1:   if (newSize > 0)
rlm@1:   {
rlm@1:     p = new unsigned char[newSize];
rlm@1:     if (p == 0)
rlm@1:       throw 1052355;
rlm@1:     int numRecordsToMove = (_size < newCapacity ? _size : newCapacity);
rlm@1:     memcpy(p, _items, _itemSize * numRecordsToMove);
rlm@1:   }
rlm@1:   delete [](unsigned char *)_items;
rlm@1:   _items = p;
rlm@1:   _capacity = newCapacity;
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::ReserveDown()
rlm@1: {
rlm@1:   Reserve(_size);
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::MoveItems(int destIndex, int srcIndex)
rlm@1: {
rlm@1:   memmove(((unsigned char *)_items) + destIndex * _itemSize,
rlm@1:     ((unsigned char  *)_items) + srcIndex * _itemSize,
rlm@1:     _itemSize * (_size - srcIndex));
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::InsertOneItem(int index)
rlm@1: {
rlm@1:   ReserveOnePosition();
rlm@1:   MoveItems(index + 1, index);
rlm@1:   _size++;
rlm@1: }
rlm@1: 
rlm@1: void CBaseRecordVector::Delete(int index, int num)
rlm@1: {
rlm@1:   TestIndexAndCorrectNum(index, num);
rlm@1:   if (num > 0)
rlm@1:   {
rlm@1:     MoveItems(index, index + num);
rlm@1:     _size -= num;
rlm@1:   }
rlm@1: }