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C++ try not to add footguns challenge (impossible) (lemmy.world)

submitted 2 months ago by Zangoose to c/[email protected]

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Alt text:

A screenshot from the linked article titled "Reflection in C++26", showing reflection as one of the bullet points listed in the "Core Language" section

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[–] [email protected] 2 points 2 months ago (1 children)

Wouldn't compilers be able to optimize runtime things out? I know that GCC does so for some basic RTTI things, when types are known at compile time.

[–] [email protected] 6 points 2 months ago (1 children)

For runtime reflection, no, you'd specifically be able to do things that would be impossible to optimize out.

But the proposal is actually for static (i.e. compile-time) reflection anyway, so the original performance claim is wrong.

[–] [email protected] 2 points 2 months ago

Yeah, that's what I was thinking of. I don't know how C++ could reasonably have Java-like reflections anyway...