how to get filenames from folder in C++

Question

suppose I want to write ls or dir. how do I get the list of files in a given directory? something equivalent of .NET's Directory.GetFiles, and additional information.

not sure about the string syntax, but:

string[] filePaths = Directory.GetFiles(@"c:\MyDir\");

Duplicate: http://stackoverflow.com/questions/612097/how-can-i-get-a-list-of-files-in-a-directory-using-c-or-c — ChrisN, Jun 01 '09 at 15:19

score 23 · Answer 1 · answered Jun 01 '09 at 15:11

Check out boost::filesystem, an portable and excellent library.

Edit: An example from the library:

int main(int argc, char* argv[])
{
  std::string p(argc <= 1 ? "." : argv[1]);

  if (is_directory(p))
  {
     for (directory_iterator itr(p); itr!=directory_iterator(); ++itr)
     {
       cout << itr->path().filename() << ' '; // display filename only
       if (is_regular_file(itr->status())) cout << " [" << file_size(itr->path()) << ']';
       cout << '\n';
      }
  }
  else cout << (exists(p) : "Found: " : "Not found: ") << p << '\n';

  return 0;
}

I wish I knew BOOST better, I installed it on Windows but I got stuck when I tried to use it from VS. Much cleaner than that ugly winAPI. — Nefzen, Jun 01 '09 at 15:37

score 4 · Accepted Answer · answered Jun 01 '09 at 15:09

4

Look at the FindFirstFile and FindNextFile APIs

http://msdn.microsoft.com/en-us/library/aa364418.aspx

answered Jun 01 '09 at 15:09

JaredPar

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I looked for quite some time for this functions in MSDN, however I found stuff like solution in .NET, J++, JavaScript and practically everything else but it. thank :) – Nefzen Jun 01 '09 at 15:40

score 1 · Answer 3 · answered Jun 01 '09 at 15:15

1

In Windows: FindFirstFile, FindNextFile, and FindClose can be used to list files in a specified directory.

Pseudo code:

 Find the first file in the directory.
 do
   { 
   //

   }while(NextFile);

Close

answered Jun 01 '09 at 15:15

aJ.

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score 0 · Answer 4 · answered Jun 01 '10 at 07:12

0

Poco::DirectoryIterator is an alternative

answered Jun 01 '10 at 07:12

Agnel Kurian

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score -3 · Answer 5 · answered Jun 01 '09 at 15:11

-3

This is totally platform depeanded.
If on windows you should use WINAPI as suggested.

answered Jun 01 '09 at 15:11

the_drow

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how to get filenames from folder in C++

5 Answers5