Re: Need help on rogue wave template classes..

From:

Michael DOUBEZ <michael.doubez@free.fr>

Newsgroups:

comp.lang.c++

Date:

Mon, 28 May 2007 14:33:47 +0200

Message-ID:

<465acac8$0$784$426a74cc@news.free.fr>

prakash.mirji@gmail.com a ?crit :[snip]

Here is the problem:

Application is using below mentioned template class which is declared
at static in Engine.h

RWTPtrHashDictionary<RWCString, RuleClass RWDefHArgs(RWCString)>
  Engine::ruleHash(RWCString::hash);

Above line definition is found in Engine.C at the beginning of the
file.

Here is sample piece of code where ruleHash is used. This code is
Engine.C. I am calling insertRule(this) static method from RuleClass.h
file.

Void Engine::insertRule( RuleClass* newRule )
{
   RuleClass* rule = NULL;
   if( 0 != ruleHash.entries() )
    ............
   Core dump....

}
[snip]
#10 0x0805139d in _init ()
#11 0x0837c90a in __libc_csu_init ()
#12 0x03517d91 in __libc_start_main () from /lib/tls/libc.so.6
#13 0x080526e1 in _start ()
(gdb)

Please need help on this. Is it problem with initilizing the static
variables?. I am waiting for you reply.

It seems you have a static initialization order problem.

Use singleton pattern if you can or avoid using static initialisation of
object using another static object (ruleHash in this case).

Alternatively, you can swap the order of the object at final link to
ensure ruleHash is initialized first (not portable but that doesn't seem
to be an issue in your case).

Otherwise, have a look at your compiler's doc. They may have custom
procedures for this kind of problem.

Michael