> > > #endif // __glibcxx_integer_sequence
> >
> > This is defined for C++14 and later, but I think it can't actually be
> > used for anything useful without C++26 packs introduced by structured
> > bindings, right?
> >
> > I wonder if we want to restrict the definition of _IndexPack to C++26?
>
> I have defined my inital patch under #if __cpp_structured_bindings >=
> 202411L,
> i.e. auto [...ids] = is supported by the compiler, and I think this is the
> right condition.
> If this functionality will be made available as extension in previous
> standard, _IndexPack
> will also be useful.
My thinking was that this simple tool itself doesn't require C++26. You can
also use it like this:
for (int i : _IndexPack<10>) { ... }
So it can be useful even without __cpp_structured_bindings >= 202411L. But I'm
happy either way, since I only need it in [simd]. ;-)
- Matthias
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Dr. Matthias Kretz https://mattkretz.github.io
GSI Helmholtz Center for Heavy Ion Research https://gsi.de
std::simd
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