RE: [boost] class template conflict in classes.hpp

From: Jason Shirk (jasonsh_at_[hidden])
Date: 2001-11-08 21:30:02

You are probably including <functional> which has a class template
modulus. 
If so, this is indeed a bug in VC6, and you've found the workaround.
This problem has been fixed for VC7.

Jason Shirk
VC++ Compiler Team

> -----Original Message-----
> From: elaine_y_at_[hidden] [mailto:elaine_y_at_[hidden]]
> Sent: Thursday, November 08, 2001 4:04 PM
> To: boost_at_[hidden]
> Subject: [boost] class template conflict in classes.hpp
> 
> Hi,
> 
> I've used boost python in the past without problems.
> Now I'm trying to help someone else wrap their code and, strangely
> enough, when we try to compile against the boost_python library we
> get the following error from Visual C++:
> 
> boost_python\boost\python\classes.hpp(379) : error C2955: 'modulus' :
> use of class template requires template argument list
>         c:\program files\microsoft visual
> studio\vc98\include\functional(57) : see declaration of 'modulus'
> boost_python\boost\type_traits\ice.hpp(80) : fatal error C1506:
> unrecoverable block scoping error
> 
> The line/code it is complaining about is the following:
> template <class T>
> PyObject* class_t<T>::instance_number_power(PyObject* obj, PyObject*
> exponent, PyObject* modulus) const
> {
>     return downcast<T>(obj)->power(exponent, modulus);
> }
> 
> If I change the two instances of the word "modulus" to something else
> (like "modulusx") and recompile boost_python and then try to compile
> the code with boost_python, that solves the problem.
> 
> The source code we are trying to use doesn't have any instances of the
> word "modulus" in it.
> 
> Any ideas?
> 
> Thanks,
> Elaine
> 
> 
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