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From: "François Dumont" <frs.dumont@gmail.com>
To: Jonathan Wakely <jwakely@redhat.com>
Cc: libstdc++ <libstdc++@gcc.gnu.org>, gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: [committed][_GLIBCXX_INLINE_VERSION] Fix constract violation
Date: Mon, 30 Oct 2023 19:31:37 +0100	[thread overview]
Message-ID: <06d14459-fd2a-48ec-9e8d-ba0a195fe83a@gmail.com> (raw)
In-Reply-To: <CACb0b4=aBB29RkJmDqiSHLWo9Np7iN3hx7kfPFrtqcBWH-agWg@mail.gmail.com>


On 30/10/2023 14:45, Jonathan Wakely wrote:
> On Sun, 29 Oct 2023 at 21:11, François Dumont <frs.dumont@gmail.com> wrote:
>> This fixes handle_contract_violation under versioned namespace mode.
>>
>> Tested under Linux x64 and confirmed to also fix Darwin build.
>>
>> libstdc++: [_GLIBCXX_INLINE_VERSION] Provide handle_contract_violation
>> symbol
>>
>> libstdc++-v3/ChangeLog:
>>
>>           * src/experimental/contract.cc
>>           [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide
>> symbol
>>           without version namespace decoration for gcc.
>> +#if _GLIBCXX_INLINE_VERSION
>> +// Provide symbol without version namespace decoration for gcc.
> For the comment in the code, I think this would be better:
>
> // The compiler expects the contract_violation class to be in an unversioned
> // namespace, so provide a forwarding function with the expected symbol name.
Sure, I'll update it.
> Do we want the forwarding function to be a weak symbol? The main
> handler function is weak because we want users to be able to override
> it with their own handler. But for this new forwarding function, they
> can't even declare it (because it has a reserved name that doesn't
> demangle to a valid type for the versioned namespace build).
>
Good point, I see no reason neither so I'll remove it.


  reply	other threads:[~2023-10-30 18:31 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-29 21:11 François Dumont
2023-10-30 13:45 ` Jonathan Wakely
2023-10-30 18:31   ` François Dumont [this message]
2023-10-30 19:14     ` Jonathan Wakely

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