On 18/03/2025 11:13, Samuel Alonso Rodríguez via Std-Proposals wrote:
> The fixed message stating that the function is unimplemented is the
> divergence from raw = delete, and sure, since C++26, users could simply
> do something like = delete(“unimplemented function!”), but the compiler
> outcome could differ and tools inspecting the compiler output may not be
> able to easily detect that

But apart from the message, what is the use case for this specific
feature? Can you show something that you'd like to achieve with it?

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Giuseppe D'Angelo