Re: Easy Question

Posted by mm on July 27, 1999 at 17:52:24:

In Reply to: Easy Question posted by Vinnie on July 27, 1999 at 17:25:09:

: In the OutputDir function that was give to us ...

: void OutputDir ( char *dir, char level )
: {
: char s[2048];
: int state;

: DirectoryReader A (dir);
: while ((state = A.GetName (s, sizeof (s))))
: {
: if ((strcmp (s, ".") != 0) && (strcmp (s, "..") != 0))
: {
: for ( int i=0; i<=level; i++ )
: cout << "---";
: cout << s << "\n";
: if (state == 2)
: OutputDir (s, level+1);
: }
: }
: }

: How does the while statement work?
: while ((state = A.GetName (s, sizeof (s))))

: Wouldn't that *always* be true?

: I know I'm missing something simple ...

The return value from GetName is either 0 (for no more files), 1 (for a filename), or 2 (for a dir name). When GetName returns 0 (i.e., when there are no more directories or files), the while condition is false and the loop terminates.

Follow Ups:

• Re: Easy Question Milly Pan 01:29:55 7/28/99 (1)
  • Re: Easy Question hussein 07:14:24 7/28/99 (0)
• Thx: I knew it was something simple (NT) Vinnie 18:33:45 7/27/99 (0)

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