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From: nelson@m.cs.uiuc.edu
Newsgroups: comp.lang.c++
Subject: functions as default parameters
Message-ID: <4800087@m.cs.uiuc.edu>
Date: 26 Feb 90 23:18:00 GMT
Lines: 18
Nf-ID: #N:m.cs.uiuc.edu:4800087:000:526
Nf-From: m.cs.uiuc.edu!nelson    Feb 26 17:18:00 1990


Well, today I discovered that default parameters can be a function, that
  is to say that the following is legal:
	class Fred {
	public:
		void bill (int b = printf ("default")) {};
	}

Now what I would _like_ to do is:
	class Jim {
	public:
		void printData (char *data, int length = strlen (data)) {};
	}
(That is to say that we can assume that if length is not supplied, then the
  passed data is actually a string.)

But it gets upset since "data" is not yet defined/in that scope.  Is there
  a way to get around this???