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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95100] <ranges> xxx_view adaptors don't work with pipeline
 operator
Date: Sat, 16 May 2020 09:02:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95100

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
No, it's not a rewriting rule. It says that the library implementation need=
s to
give range adaptor objects an overloaded operator| that allows them to be u=
sed
that way.

There's no magical rewriting going on, just operator overloading. You can't
overload an operator to take a class template as an argument.

Class templates are not objects and objects are not class templates.

Not a bug and not a defect.=