Правильно ли пишу код, непонятны результаты функции GetDiskFreeSpaceEx

struct diskSpace
{
unsigned __int64 lpFreeBytesAvailableToCaller;
unsigned __int64 lpTotalNumberOfBytes;
unsigned __int64 lpTotalNumberOfFreeBytes;
BOOL diskflag;
};
 
class diskInfo
{
private:
    TCHAR *szLogicalDrives;
    TCHAR **drives;
    unsigned short diskCount;
    diskSpace *diskArr;
. . .
    diskArr = new diskSpace[diskCount];
    for(unsigned short i = 0; i << diskCount; i++)
    {
        diskArr[i].diskflag = ::GetDiskFreeSpaceEx(drives[i], (PULARGE_INTEGER)&diskArr[i].lpFreeBytesAvailableToCaller, 
        (PULARGE_INTEGER)&diskArr[i].lpTotalNumberOfBytes, (PULARGE_INTEGER)&diskArr[i].lpTotalNumberOfFreeBytes);
    }

i << diskCount

#include <conio.h>
#include "diskInfo.h"
 
//#ifndef _UNICODE
//#define _UNICODE
//#endif
 
#ifndef UNICODE
#define UNICODE
#endif
 
int main()
{
diskInfo di;
 
di.getLogDisks();
di.spaceDisks();
di.printConsolDisks();
di.freeArrDisks();
 
_getch();
return 0;
}

#include "diskInfo.h"
 
diskInfo::diskInfo()
{
}
 
diskInfo::~diskInfo()
{
}
 
void diskInfo::getLogDisks()
{
    DWORD nBufferLength = ::GetLogicalDriveStrings(0, NULL);
    // Каждая такая строка закрыта двоичным нулем. Последняя строка будет закрыта двумя двоичными нулями.
    szLogicalDrives = new TCHAR[nBufferLength];
    DWORD dwResult = ::GetLogicalDriveStrings(nBufferLength,  // размер буфера. 
    szLogicalDrives); // адрес буфера для записи сведений об устройствах.
 
    diskCount = dwResult/4;
    drives = new TCHAR*[diskCount];
 
    unsigned short k = 0;
    for(unsigned short i = 0; i < diskCount; i++)
    {
        drives[i] = new TCHAR[4];
        for(unsigned short j = 0; j < 4; j++)
        {
            drives[i][j] = szLogicalDrives[k + j];
        }
        k += 4;
    }
}
 
void diskInfo::spaceDisks()
{
    diskArr = new diskSpace[diskCount];
    unsigned short i = 0;
    diskArr[i].lpFreeBytesAvailableToCaller = 0;
    diskArr[i].lpTotalNumberOfBytes = 0;
    diskArr[i].lpTotalNumberOfFreeBytes = 0;
 
    for(; i << diskCount; i++)
    {
        diskArr[i].diskflag = ::GetDiskFreeSpaceEx(drives[i], (PULARGE_INTEGER)&diskArr[i].lpFreeBytesAvailableToCaller, 
        (PULARGE_INTEGER)&diskArr[i].lpTotalNumberOfBytes, (PULARGE_INTEGER)&diskArr[i].lpTotalNumberOfFreeBytes);
    }
}
 
void diskInfo::printConsolDisks()
{
    for(unsigned short i = 0; i < diskCount; i++)
    {
        std::wcout << drives[i];
        //std::wcout << _T(" There is a disk: ") << diskArr[i].diskflag;
        std::wcout << _T(" Total disk space: ") << diskArr[i].lpTotalNumberOfBytes;
        std::wcout << _T(" Disk free: ") << diskArr[i].lpTotalNumberOfFreeBytes;
        std::wcout << std::endl;
    }
}
 
void diskInfo::freeArrDisks()
{
    delete [] diskArr;
    for(unsigned short i = 0; i < diskCount; i++)
    {
        delete [] drives[i];
    }
    delete [] drives;
    delete [] szLogicalDrives;
}

/#define _CRT_SECURE_NO_WARNINGS
//#pragma once
 
//#ifndef _UNICODE
#define _UNICODE
//#endif
 
//#ifndef UNICODE
#define UNICODE
//#endif
 
#include <Windows.h>
//#include <fileapi.h>
//#include <setupapi.h>
#include <tchar.h>
#include <iostream>
 
struct diskSpace
{
unsigned __int64 lpFreeBytesAvailableToCaller;
unsigned __int64 lpTotalNumberOfBytes;
unsigned __int64 lpTotalNumberOfFreeBytes;
BOOL diskflag;
};
 
class diskInfo
{
private:
    TCHAR *szLogicalDrives;
    TCHAR **drives;
    unsigned short diskCount;
    diskSpace *diskArr;
public:
    diskInfo::diskInfo();
    diskInfo::~diskInfo();
    void getLogDisks();
    void spaceDisks();
    UINT getTypeDrive(LPCTSTR lpRootPathName);
    void printConsolDisks();
    void freeArrDisks();
};

for(; i << diskCount; i++)