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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/96251] [constexpr, coroutines] co_yield incorrectly
 rejected in non-explicitly-constexpr generic lambda
Date: Tue, 16 Feb 2021 20:58:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96251

Iain Sandoe <iains at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |iains at gcc dot gn=
u.org

--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> ---
Created attachment 50206
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50206&action=3Dedit
Patch for testing

It seems most efficient to prevent the marking of the template as early as
possible (plus I was not able to figure out how to make the instantiation
process bail when it encountered a case that was not suitable for constexpr=
).=