It seems more interesting than at first glance.

Anyway, after carefully looking at the standard and getting wrong but
useful answers from AI models, I believe the behaviour is implied in
[temp.spec.general]:

1 The act of instantiating a function, a variable, a class, a member of a
class template, or a member template is referred to as template
instantiation.
2 A function instantiated from a function template is called an
instantiated function…
4 A specialization is a class, variable, function, or class member that is
either instantiated from a templated entity or is an explicit
specialization of a templated entity.

So a specialization of a function template is a normal function, and normal
rules then apply [basic.link]: unless the entity falls into the categories
specified as having internal linkage, "the name has external linkage".

On Thu, 12 Sept 2024 at 22:52, Sean Mayard via Std-Discussion <
std-discussion_at_[hidden]> wrote:

> Hi, I am trying to find out if explicit specialization of function
> templates or class templates have the same linkage as the primary template.
> Or is it that explicit specialization has no linkage at all?
>
> I tried find it in the standard but couldn't find it. I probably have
> missed something so I would be glad if someone can help me for the same. Or
> maybe a cwg issue is needed(If i didn't miss anything)?
>
> Regards,
> --
> Std-Discussion mailing list
> Std-Discussion_at_[hidden]
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>

-- 
Yongwei Wu
URL: http://wyw.dcweb.cn/