https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124312
Mishmish Dev <mishmish at mishmish dot dev> changed:
What |Removed |Added
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CC| |mishmish at mishmish dot dev
--- Comment #6 from Mishmish Dev <mishmish at mishmish dot dev> ---
(In reply to Jonathan Wakely from comment #5)
> This seems like the simplest fix for the gcc-16 branch (it already works on
> trunk):
>
> --- a/libstdc++-v3/include/bits/c++config
> +++ b/libstdc++-v3/include/bits/c++config
> @@ -440,6 +440,12 @@ _GLIBCXX_END_NAMESPACE_VERSION
> #define _GLIBCXX_ASSERTIONS 1
> #endif
>
> +// Likewise for reflection, as the debug mode vector<meta::info> doesn't
> work.
> +#if defined(_GLIBCXX_DEBUG) && defined(__cpp_impl_reflection)
> +#undef _GLIBCXX_DEBUG
> +#define _GLIBCXX_ASSERTIONS 1
> +#endif
> +
> // Inline namespaces for special modes: debug, parallel.
> #if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PARALLEL)
> namespace std
I don't think this is a good idea. Turns -freflection into an ABI switch.
Example of mixing TUs with and without reflection creating ODR violation:
https://godbolt.org/z/Ws9xj5Ev3
