From 4572392500505428419 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,fbd36da46c3cc7a0 X-Google-Attributes: gidf78e5,public From: Francis Glassborow Subject: Re: Discussion: type_info Date: 1999/12/07 Message-ID: <7QYbIRArmTT4Ew2J@robinton.demon.co.uk>#1/1 X-Deja-AN: 557781153 Approved: stephen.clamage@sun.com (comp.std.c++) References: <81ecdl$pq$1@nnrp1.deja.com> <81u646$kln$1@nnrp1.deja.com> <823n5t$7qg@library1.airnews.net> <384BBE4F.ABDC393C@lucent.com> X-UID: 0000000001 X-Status: $$$T Organization: Southfield Microcomputer SS Mime-Version: 1.0 Reply-To: Francis Glassborow Newsgroups: comp.std.c++ Originator: clamage@taumet In article <384BBE4F.ABDC393C@lucent.com>, Michiel Salters writes >What do you mean, being unable to hash pointers? Well there is a small problem, many distinct bit patterns can represent the same pointer (consider the way pointers work in segmented architectures) so the relationship between pointers and addresses is many:one. How do you propose to provide your unique hash? Francis Glassborow Journal Editor, Association of C & C++ Users 64 Southfield Rd Oxford OX4 1PA +44(0)1865 246490 All opinions are mine and do not represent those of any organisation [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://reality.sgi.com/austern_mti/std-c++/faq.html ]