Enumerating all paths on a drive?

Lord Kixdemp

Hello everyone! I'm trying to enumerate all the paths on my C:\ drive. I want this: C: C:\folder C:\folder\subfolder C:\folder\subfolder\subsubfolder C:\folder\subfolder\subsubfolder\etc ...but instead I get this: C: C:\folder C:\folder\. C:\folder\.\. C:\folder\.\.\. What's the correct way of doing this? I'm using FindFirstFile and FindNextFile, not using MFC. Thanks people!

Windows Calculator told me I will die at 28. :(

Nibu babu thomas

See this illustration from MSDN, the part you are missing in colored in red...

#include
#include

using namespace std;

void Recurse(LPCTSTR pstr)
{
CFileFind finder;

// build a string with wildcards
CString strWildcard(pstr);
strWildcard += _T("\\*.*");

// start working for files
BOOL bWorking = finder.FindFile(strWildcard);

while (bWorking)
{
bWorking = finder.FindNextFile();

  **`// skip . and .. files; otherwise, we'd       // recur infinitely!`**

  `if (finder.IsDots())          continue;`

  // if it's a directory, recursively search it

  if (finder.IsDirectory())
  {
     CString str = finder.GetFilePath();
     cout << (LPCTSTR) str << endl;
     Recurse(str);
  }

}

finder.Close();
}

void main()
{
if (!AfxWinInit(GetModuleHandle(NULL), NULL, GetCommandLine(), 0)
cout << "panic!" << endl;
else
Recurse(_T("C:"));
}

A dot(.) indicates current directory and a dot dot(..) indicates parent directory. So you need to ignore these two entries.

Nibu thomas A Developer Code must be written to be read, not by the compiler, but by another human being. http:\\nibuthomas.wordpress.com

Lord Kixdemp

Is there any way to do this without MFC and C++ (just plain C & Win32)? Thanks!

Windows Calculator told me I will die at 28. :(

Nibu babu thomas

Lord Kixdemp wrote:

Is there any way to do this without MFC and C++ (just plain C & Win32)?

Yeah, the source code of CFileFind::IsDots is as follows, now maybe you know how to do it...

BOOL CFileFind::IsDots() const
{
ASSERT(m_hContext != NULL);
ASSERT_VALID(this);

// return TRUE if the file name is "." or ".." and
// the file is a directory

BOOL bResult = FALSE;
if (m\_pFoundInfo != NULL && IsDirectory())
{
	LPWIN32\_FIND\_DATA pFindData = (LPWIN32\_FIND\_DATA) m\_pFoundInfo;
	if (pFindData->cFileName\[0\] == '.')
	{
		if (pFindData->cFileName\[1\] == '\\0' ||
			(pFindData->cFileName\[1\] == '.' &&
			 pFindData->cFileName\[2\] == '\\0'))
		{
			bResult = TRUE;
		}
	}
}

return bResult;

}

Nibu thomas A Developer Code must be written to be read, not by the compiler, but by another human being. http:\\nibuthomas.wordpress.com

Michael Dunn

When you're enumerating, skip any dirs named "." and ".."

--Mike-- Visual C++ MVP :cool: LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ