blog de bonarbo

CString GetReadableFileSize(double fFileSizeInBytes) 

{

double size = fFileSizeInBytes;

int i = 0;

const TCHAR* units[] = {_T("Bytes"), _T("KB"), _T("MB"), _T("GB"), _T("TB"), _T("PB"), _T("EB"), _T("ZB"), _T("YB")};

while (size > 1024) 

{

size /= 1024;

i++;

}

CString strResult;

strResult.Format(_T("%.*f %s"), i, size, units[i]);

return strResult;

}

[원문 (Original Text) : HUMAN-READABLE FILE SIZE IN C]

LPVOID lpMsgBuf;

DWORD dwError = GetLastError(); 

FormatMessage(

FORMAT_MESSAGE_ALLOCATE_BUFFER | 

FORMAT_MESSAGE_FROM_SYSTEM |

FORMAT_MESSAGE_IGNORE_INSERTS,

NULL,

dwError,

MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),

(LPTSTR) &lpMsgBuf,

0, NULL );

::OutputDebugString((LPCTSTR)lpMsgBuf);

LocalFree(lpMsgBuf);

[참고 : Retrieving the Last-Error Code]