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From: "steve_green at qq dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/101710] Sometimes constexpr cannot be used as constexpr
Date: Sun, 01 Aug 2021 08:59:33 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101710

steve02081504 <steve_green at qq dot com> changed:

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

--- Comment #8 from steve02081504 <steve_green at qq dot com> ---
(In reply to Andrew Pinski from comment #6)
> Changing:
>   if
> constexpr(type_info<T>.
> has_attribute_helper<can_t_use_default_null_ptr>()&&type_info<T>.
> not_has_has_attribute_helper<force_use_default_null_ptr>())
>=20
> to:
>   if constexpr(type_info<T>.template
> has_attribute_helper<can_t_use_default_null_ptr>()&&type_info<T>.template
> not_has_has_attribute_helper<force_use_default_null_ptr>())
>=20
> Fixes many of the errors
> Note the use of template.
>=20
> Note there are cases where GCC does not realize the template keyword is n=
ot
> needed but I don't know if it is actually needed in this case or not.  I
> suspect it is.

So I just need to add "template" to these errors?
Well, although it doesn't look very beautiful, I think I latched on
This is my code's problem, not GCC's ICE, right
thank you=