[prev in list] [next in list] [prev in thread] [next in thread] 

List:       squid-dev
Subject:    MEMPROXY_CLASS and virtual methods and cbdata class's
From:       Robert Collins <robertc () robertcollins ! net>
Date:       2006-05-27 13:04:57
Message-ID: 1148735098.31431.9.camel () localhost ! localdomain
[Download RAW message or body]


saw this comment today..
 // reset should not reset the protocol; could have made protoPrefix a
 // virtual function instead, but it is not clear whether virtual
methods
 // are allowed with MEMPROXY_CLASS() and whether some cbdata void*
 // conversions are not going to kill virtual tables

virtual methods work file with MEMPROXY_CLASS.
casting to void * always gets the base address of the struct based on
the type that is being looked at AIUI.

I.e. if you have an HttpReply and cast to void * you might get a
different address than casting a HttpMsg to void * - but in practice
they are only ever different if there is multiple inheritance in place.

Rob


--=20
GPG key available at: <http://www.robertcollins.net/keys.txt>.

["signature.asc" (application/pgp-signature)]

[prev in list] [next in list] [prev in thread] [next in thread]