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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

  • Zangoose@lemmy.worldOP
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    1 month ago

    There’s a pretty big difference though. To my understanding enable_if happens at compile time, while reflection typically happens at runtime. Using the latter would cause a pretty big performance impact over a (large) list of data.

    • Sonotsugipaa@lemmy.dbzer0.com
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      1 month ago

      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.

      • BatmanAoD@programming.dev
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        1 month ago

        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.