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Get current working directory

/ Published in: C
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Sometimes I want a complete path to a file in the current working directory to make error messages clearer. The URL has alternate approaches.

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  1. // Using MFC. 
  2. CString cwd;
  3. DWORD cwdLen = ::GetCurrentDirectory( MAX_PATH, cwd.GetBufferSetLength(MAX_PATH+1) );
  4. cwd.ReleaseBuffer( cwdLen ); // Note that ReleaseBuffer doesn't need a +1 for the null byte.
  5.  
  6. // Alternate approach, in C, using Win API.
  7. static LPCSTR GetDefaultDirectory()
  8. {
  9.    static TCHAR szDirectory[MAX_PATH] = {0}; // place to remember path found.
  10.  
  11.    if ( !szDirectory[0] ) // if already found.
  12.    {
  13.       ::GetCurrentDirectory(sizeof(szDirectory) - 1, szDirectory); // in winbase.h
  14.    }
  15.  
  16.    return szDirectory;
  17.  
  18. }

URL: http://www.pages.drexel.edu/~mfp27/cppfaqs/

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