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From: peter@mit-amt.MEDIA.MIT.EDU (Peter Schroeder)
Newsgroups: comp.lang.c++
Subject: Re: Lvalue checking for operator= ??
Summary: how to specify *this as const?
Message-ID: <874@mit-amt.MEDIA.MIT.EDU>
Date: 24 Oct 89 01:58:27 GMT
References: <33433@cornell.UUCP> <10045@alice.UUCP>
Organization: MIT Media Lab, Cambridge, MA
Lines: 19

In article <10045@alice.UUCP> ark@alice.UUCP (Andrew Koenig) writes:
>In article <33433@cornell.UUCP>, deb@svax.cs.cornell.edu (David Baraff)
writes:
>How about making operator+ return a const matrix?
>Then you won't be able to assign to it.
>
> [...]
>on behalf of a const object (well, 2.0 will let you get away with
>it but will give a warning).  I think that's almost exactly
>what you want.
>				--Andrew Koenig

Which brings up an interesting point. How do I tell the compiler that `*this'
is const with respect to some operation?

After all that is really what I need in the above case?!

Peter
peter@media-lab.media.mit.edu