incompatibility between g++ and vc++

incompatibility between g++ and vc++

[Vincent Torri]

Hello,

one of my friend is writing a c++ program and compile it with vc++ on
windows. He has no compilation error.

I wanted to test it on linux, but g++ report an error.

Here is a part of the source code : 

template <class Clock> class timer : boost::noncopyable
{

  static Clock const clock_;   //Clock instance

  // methods

  ...


};

//instantation of the clock_ static member
template <class Clock>
Clock const timer<Clock>::clock_;


And g++ reports this error:
                               
l98: uninitialized const                                                        
`avs::timing::timer<avs::timing::ThreadClock>::clock_' 

I have tried to understand why g++ reduses to initialize clock_, without
success.

Does someone know where (what) is the error ? If you want more code, tell
me.

Thank you !

Vincent TORRI

Re: incompatibility between g++ and vc++

[Eljay Love-Jensen]

Hi Vincent,

I believe that MSVC++ is not compliant to ISO 14882 in this case.

Try this instead:

template <class Clock>
Clock const timer<Clock>::clock_ = Clock();

(Hmmm, shouldn't that be a "static Clock const volatile clock_;", since you 
don't want it cached-optimized?)

HTH,
--Eljay

Re: incompatibility between g++ and vc++

[Vincent Torri]

On Wed, 9 Jun 2004, Eljay Love-Jensen wrote:

> Hi Vincent,
> 
> I believe that MSVC++ is not compliant to ISO 14882 in this case.
> 
> Try this instead:
> 
> template <class Clock>
> Clock const timer<Clock>::clock_ = Clock();
> 
> (Hmmm, shouldn't that be a "static Clock const volatile clock_;", since you 
> don't want it cached-optimized?)
> 
> HTH,
> --Eljay

Thank you very much, it works that way !

Vincent TORRI