[PATCH] D128745: [c++] implements DR692, DR1395 and tentatively DR1432, about partial ordering of variadic template partial specialization or function template

[Yuanfang Chen via Phabricator via cfe-commits]

ychen added a comment.

In D128745#3751471 <https://reviews.llvm.org/D128745#3751471>, @joanahalili 
wrote:

> We have some compilation failures on our end because of function template 
> parameter deduction when passing the function template to a function pointer.
>
>   typedef void (*f)(const int&);
>   
>   template <typename T>
>   void F(T value) {}
>   
>   template <typename T>
>   void F(const T& value){}
>   
>   void q(f);
>   
>   void w() {
>       q(&F);
>   }
>
> https://gcc.godbolt.org/z/faoq74q7G
> Is this an intended outcome for this patch?

Thanks for the report. No that's not the intent. This should only affect 
partial ordering but not which candidate is viable (error message `candidate 
function not viable ...`). I'll take a look.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D128745/new/

https://reviews.llvm.org/D128745

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