Re: Scope of constructor initialisation list

From:
Pantokrator <adosis@shotoku.co.uk>
Newsgroups:
comp.lang.c++
Date:
18 May 2007 04:05:38 -0700
Message-ID:
<1179486338.397038.141900@p77g2000hsh.googlegroups.com>
....sorry presed the wrong button by mistake..

Here's the entire message again:

 Hi all,
 I've got a question about the scope of the constructor initialisation
 list. First of all, let me explain my classes:

 // *****************************************************
 class CThread
 {
 CThread(){};
 CThread(CMyThreadFunctor *pThreadFunctor)
     {
         ...
     };};

 // *****************************************************
 class CMyThreadFunctor
 {
 ...};

 // *****************************************************
 class CMyThread : public CThread
 {

     CMyThreadFunctor *m_pThreadFunctor;

 public:

         CMyThread()
                 : CThread(m_pThreadFunctor = new
CMyThreadFunctor(this)) <<<< SCOPE-1
         {
                 //CThread(m_pThreadFunctor = new
CMyThreadFunctorIMO(this)); <<<<SCOPE-2

         }

 };

 When I init the CThread object using the constructor init list
 (SCOPE-1), my CThread object runs fine without a problem. If I init
 CThread within the constructor (SCOPE-2), my CThread calls the
 destructor straight after initialisation and I suspect that it is
 related to the scope of the object. I even tried the following but
 without any luck:

class CMyThread : public CThread
 {

     CMyThreadFunctor *m_pThreadFunctor;
     CThread mainThread;
 public:

         CMyThread()
                 //: CThread(m_pThreadFunctor = new
CMyThreadFunctor(this)) <<<< SCOPE-1
         {
                 mainThread=(m_pThreadFunctor = new
CMyThreadFunctorIMO(this)); <<<<SCOPE-2

         }

 };

Could you please tell me what am i doing wrong here and what is the
sccope of the two lines?

Thanks

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