Re: [boost] Need help with workaround for MSVC bug

Subject: Re: [boost] Need help with workaround for MSVC bug
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-09-17 16:46:57

Emil Dotchevski wrote:
>
> On MSVC, the following correct code produces error C2896: 'void
> operator ||(T,void (__cdecl *)(tag<X>))' : cannot use function
> template 'void bar(tag<X>)' as a function argument.
>
> struct foo { };
>
> template <int X>
> struct tag { };
>
> template <int X>
> void bar( tag<X> ) { }
>
> template <class T,int X>
> void operator||(T, void(*)(tag<X>)) { }
>
> int main()
> {
>   foo()||bar<1>;
> }

I think the problem is that the function template is a __thiscall * rather than the default __cdecl *.  Thus, for MSVC (only), adding the following might solve your problem:

   template <class T, int X>
   void operator ||(T, void (__thiscall *)(tag<X>))
   {
   }

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.