[webkit-dev] Using C++20 in WebKit
ysuzuki at apple.com
Thu Jan 6 02:11:34 PST 2022
We cannot use char8_t since it is not available in GCC 8.3.0 :)
> On Jan 5, 2022, at 7:43 PM, Alex Christensen via webkit-dev <webkit-dev at lists.webkit.org> wrote:
> I, with great help from several of you, got https://bugs.webkit.org/show_bug.cgi?id=233963 <https://bugs.webkit.org/show_bug.cgi?id=233963> compiling on all platforms, but several of the JSC bots are still red. I’m under the impression that they either need a clean build or I’ve missed something. Could a JSC bot maintainer look into it?
>> On Dec 7, 2021, at 2:38 PM, Carlos Alberto Lopez Perez via webkit-dev <webkit-dev at lists.webkit.org <mailto:webkit-dev at lists.webkit.org>> wrote:
>> On 06/12/2021 22:36, Yusuke Suzuki via webkit-dev wrote:
>>> I recently upgraded GCC requirement to 8.3.0 based
>>> on https://trac.webkit.org/wiki/WebKitGTK/GCCRequirement <https://trac.webkit.org/wiki/WebKitGTK/GCCRequirement>
>>> <https://trac.webkit.org/wiki/WebKitGTK/GCCRequirement <https://trac.webkit.org/wiki/WebKitGTK/GCCRequirement>> (https://trac.webkit.org/changeset/283348/webkit <https://trac.webkit.org/changeset/283348/webkit>
>>> <https://trac.webkit.org/changeset/283348/webkit <https://trac.webkit.org/changeset/283348/webkit>>)
>>> As a result, we can use some of C++20 features.
>>> I wonder if we can flip C++20 now. While some of C++20 features cannot
>>> be used since GCC 8.3.0 does not support, but some of features can be
>>> used, and it is super useful.
>> From the PoV of WebKitGTK I think it is Ok to enable now the building
>> with C++-20 support and to start using the C++-20 features already
>> supported by GCC 8.3.0
>> Check here: https://gcc.gnu.org/projects/cxx-status.html <https://gcc.gnu.org/projects/cxx-status.html> which C++-20
>> features are supported by GCC 8
>> Before using them I think it would be a good idea to double-check if
>> those are also supported by the minimum version of Clang that we want to
>> And maybe also to check if those are supported by MS Visual C++ ?
>> I say maybe because I'm not sure if we support this compiler.
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>> webkit-dev at lists.webkit.org <mailto:webkit-dev at lists.webkit.org>
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