[Quickfix-developers] Modifying messages with MessageCracker

[Mark W. <scr...@go...>]

I'm implementing toAdmin in the Application interface to modify the
Logon message to add username and password. I noticed that in the
message cracker it provides non-const overloads for modifying
messages. However in the void crack( Message& message,const SessionID&
sessionID,const BeginString& beginString ) implementation when
downcasting the message it casts it to the const version. e.g. at line
122 in version 1.33.3 it says
((FIX44::MessageCracker&)(*this)).crack((const FIX44::Message&)
message, sessionID);. So it calls the const overload in the per fix
version MessageCracker. Is it possible to change this to a non-const
downcast? Is there an alternative method I should be using instead?

Thanks,

Mark

P.S. Apologies if this ends up posted twice. Had my from address set
incorrectly (gmail vs googlemail) on the first attempt and think it
was dropped.