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From: "redbeard0531 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/99021] New:
 coroutine_handle<_Promise>::from_address() should be noexcept
Date: Tue, 09 Feb 2021 10:27:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99021

            Bug ID: 99021
           Summary: coroutine_handle<_Promise>::from_address() should be
                    noexcept
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redbeard0531 at gmail dot com
  Target Milestone: ---

While it isn't required by the standard, it seems odd that=20
coroutine_handle<void>::from_address() is noexcept while the non-specialized
version isn't when they are the same code. This would also help with
clang/libstdc++ compatibility because they currently check for noexcept of
from_address() as part of validating
https://eel.is/c++draft/dcl.fct.def.coroutine#15 (I'll be filing a bug with
them about that shortly since that is leaking an internal compiler
implementation detail).=