incompatibility between g++ and vc++ (again)

incompatibility between g++ and vc++ (again)

[Vincent Torri]

Hello,

i have another problem with vc+ and gcc. gcc does not like the syntax i
show below, whereas vc+ does not complain. Here is  piece of code:


class Dimension
{ ...
  template <int bps> Dimension Turn() const {.....} 
  ...
};


template <int bpp> class LeftTurner
{

public:

  BufferWindow operator()(BufferWindow const& source) const
  {
    BufferWindow result( source.GetDimension().Turn<bpp>(),
source.GetEnvironment() );

    //...

    return result;
  }

};

gcc does not like Turn<bpp>() in the leftturner class. I have the
following error : 
 
../../src/core/bufferwindow/leftturner.h: In member function
`avs::BufferWindow avs::bw::LeftTurner<bpp>::operator()(const
avs::BufferWindow&) const':
../../src/core/bufferwindow/leftturner.h:47: error: syntax error before
`;' token

I can trasform Turn into a "real" function. But i prefer not doing that.

Does someone understand why it does not work with g++ ?

Thank you !

Vincent TORRI

Re: incompatibility between g++ and vc++ (again)

[Gabriel Dos Reis]

You Wrote Vincent Torri
>
> Hello,
>
> i have another problem with vc+ and gcc. gcc does not like the syntax i
> show below, whereas vc+ does not complain. Here is  piece of code:
>
>
> class Dimension
> { ...
>   template <int bps> Dimension Turn() const {.....}
>   ...
> };
>
>
> template <int bpp> class LeftTurner
> {
>
> public:
>
>   BufferWindow operator()(BufferWindow const& source) const
>   {
>     BufferWindow result( source.GetDimension().Turn<bpp>(),
                                                ^^^^^
Say:

    source.GetDimension().template Turn<bpp>()

This is documented in our FAQ.

Re: incompatibility between g++ and vc++ (again)

[Vincent Torri]

On Wed, 16 Jun 2004, Gabriel Dos Reis wrote:

> You Wrote Vincent Torri
> >
> > Hello,
> >
> > i have another problem with vc+ and gcc. gcc does not like the syntax i
> > show below, whereas vc+ does not complain. Here is  piece of code:
> >
> >
> > class Dimension
> > { ...
> >   template <int bps> Dimension Turn() const {.....}
> >   ...
> > };
> >
> >
> > template <int bpp> class LeftTurner
> > {
> >
> > public:
> >
> >   BufferWindow operator()(BufferWindow const& source) const
> >   {
> >     BufferWindow result( source.GetDimension().Turn<bpp>(),
>                                                 ^^^^^
> Say:
> 
>     source.GetDimension().template Turn<bpp>()
> 
> This is documented in our FAQ.

it works ;)

thanks a lot !

Vincent TORRI

incompatibility between g++ and vc++: Mutex

[Vincent Torri]

Hello,

i have another problem with this line: 

Mutex first & = &other < this ?  mutex_: other.mutex_;

There's an error with g++ (and none with vc++) : 
error: syntax error before `;' token

I don't understand why this does not work with a mutex.

Could someoe help me ?

Thanks !

Vincent TORRI

Re: incompatibility between g++ and vc++: Mutex

[Eljay Love-Jensen]

Hi Vincent,

Could you provide a short, compilable example that reproduced the problem?

(Compilable on VC++, but produces the error on GCC, of course.)

Are you using the /Za switch on VC++?  (To make VC++ more ANSI compliant.)

Thanks,
--Eljay

Re: incompatibility between g++ and vc++: Mutex

[Vincent Torri]

Hello,

first, i have forgotten to say that we use boost library for mutex. It
seems that g++ does not like the conditional expression that we used.

I have written a small program (with 3 var and the line of my previous
post), which does not reproduce the same error, but which does not compile
anyway. I will give it to the guy which is involved in the windows port,
in order to know if this small program compile or not with vc++ (with or
without the /Za flag).

Once i will have his answer, i'll respond here.

Thank you very much !

Vincent TORRI

On Fri, 18 Jun 2004, Eljay Love-Jensen wrote:

> Hi Vincent,
> 
> Could you provide a short, compilable example that reproduced the problem?
> 
> (Compilable on VC++, but produces the error on GCC, of course.)
> 
> Are you using the /Za switch on VC++?  (To make VC++ more ANSI compliant.)
> 
> Thanks,
> --Eljay
> 
 

Re: incompatibility between g++ and vc++: Mutex (solved)

[Vincent Torri]

> 
> Hello,
> 
> i have another problem with this line: 
> 
> Mutex first & = &other < this ?  mutex_: other.mutex_;
> 
> There's an error with g++ (and none with vc++) : 
> error: syntax error before `;' token

I have solved this problem
there were missing parenthesis... :

  Mutex first & = (&other) < this ?  mutex_: other.mutex_;

I don't know if, that case, vc++ would have given the wrong result.

Vincent TORRI