Re: compile error on constructor/private

From:
eric <cneric12lin0@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Wed, 10 Aug 2011 15:28:57 -0700 (PDT)
Message-ID:
<ebe29367-46b1-4ab5-a446-07804008ac78@l11g2000prh.googlegroups.com>
On Aug 10, 3:00 pm, red floyd <no.spam.h...@its.invalid> wrote:

On 8/10/2011 2:13 PM, eric wrote:

Dear C/g++ experts:

I declare the following
--------------------------------------------------------
     template<typename T>
   class DOMPtr {
   public:
       DOMPtr(T* t) : t_(t) { }
       ~DOMPtr() { t_->release(); }
       T* operator->() const { return t_; }
   private:
       // prohibit copying and assigning
       DOMPtr(const DOMPtr&); =

   // this is my line 38

       DOMPtr& operator=(const DOMPtr&);
       T* t_;
   };
-----------------------------------------------------------------------=

--------

then use it here
----------------------------------------------------------
         DOMPtr<DOMBuilder> parser =
             static_cast<DOMImplementationLS*> =

   // this is 94

(impl)->createDOMBuilder(DOMImplementationLS::MODE_SYNCHRONOUS, 0);
-------------------
         // Construct a DOMWriter to save animals.xml
         DOMPtr<DOMWriter> writer =
             static_cast<DOMImplementationLS*>(impl)-

createDOMWriter(); // this 140


This is conceptually equivalent to:

     DOMPtr<DOMWriter> writer =
         DOMPtr<DomWriter>(static_cast ...);

The compiler elides the assignment, but it still needs to be
visible. And your assignment operator is private.

Try rewriting line 94 and 140 as direct constructor calls:

      DOMPtr<DOMBuilder> parser(static_cast ...); // 94
      DOMPtr<DOMWriter> writer(static_cast ...); // 140


Thanks it work

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