[ PATCH ] [ C++ ] [ libstdc++ ] P1208r6 Merge source_location

[Jonathan Wakely]

On 27/12/19 22:27 -0500, JeanHeyd Meneide wrote:
>On Fri, Dec 27, 2019 at 2:33 PM Jakub Jelinek <jakub@redhat.com> wrote:
>>
>> This will be ABI incompatible between GCC and Clang, that doesn't look like
>> a good idea to me.  I thought the plan is to use what you have in the
>> _GLIBCXX_HAVE_BUILTIN_SOURCE_LOCATION case always, except that if
>> __builtin_source_location isn't available, initialize _M_data to nullptr.
>
>You're right, it's probably bad to have an implementation that
>switches. I guess that means clang folks will have to implement the
>builtin too at some point (but Jonathan's comment in the
>__builtin_source_location patch said they might not, so I'm not sure
>what to do for Clang here I guess?).

Do nothing - compiling with Clang won't define std::source_location at
all.