3 ms·

> members of a const struct are also const. Yes, but if your struct contains references, the constness doesn't apply to what those references point to. In Rust

> members of a const struct are also const. Yes, but if your struct contains references, the constness doesn't apply to what those references point to. In Rust it does.

mgaunard 9mo ago
For pointers, const only affects whether you can re-set it to point to something else, not the pointee. Nothing prevents you from building a smart pointer with those semantics though, std::indirect is an example of this (arguably closer to Rust's Box).
- wtetzner 9mo ago
  Sure, but my point is that the semantics between C++ and Rust are different, and are therefore not an exact match as the article stated.
  - mgaunard 9mo ago
    In C++, you define the semantics yourself.
    - wtetzner 9mo ago
      No, const semantics are defined by the language definition.
      - mgaunard 9mo ago
        It's defined by whatever you put in your const overloads. const is primarily a type annotation that affects overload resolution. You must be confused because Rust has no overloading to begin with.