From:	Ewan Mellor <gateacre AT rmplc DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Signature bug?
Date:	Mon, 24 Feb 1997 12:12:36 -0800
Organization:	Gateacre CCS
Lines:	38
Message-ID:	<3311F634.E96@rmplc.co.uk>
Reply-To:	gateacre AT rmplc DOT co DOT uk
NNTP-Posting-Host:	vpop-dyn-filt-59.rmplc.co.uk
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Consider this source code:

signature Foosig {
   void Test() const;	// (1)
   };

class Foo {
public:
   void Test() const {	// (2)
      //  Testing Foo
      }
   };

main()
{
Foo f;
Foosig *fsp = &f;

fsp->Test();

return 0;
}

When I try to compile this (with the -fhandle-signatures flag,
obviously) I get the following error:

sig.cc:17: call to non-const method `void Foosig::Test() const' with
const object

This error message seems to contradict itself since it says I am calling
a non-const method, and then names the method as const.  If I remove the
const labelled (1) in the code it then compiles fine even though, to me,
method (2) no longer matches the signature method (1).  Is this a bug,
or am I doing something wrong?

Thanks for your time,

Ewan Mellor.

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