3 ms·

what a language

• lionkor 3y ago
  just consider const reference to be the default for non-primitive types
  • a_e_k 3y ago
    My rule of thumb is to use const references when the sizeof the type is larger than the sizeof a pointer or reference.
    • repsilat 3y ago
      Might be worth using values/copies even a bit bigger, so long as it's "simple" data. This[1] short post argues for passing `std::string_view` (~2 pointers) by value, for - Omitting pointer indirections (loads), - Not forcing the pointee to have an address (i.e. gotta be in memory, not just registers), and - Eliminating aliasing questions, potentially leading to better codegen if the function isn't inlined. 1: https://quuxplusone.github.io/blog/2021/11/09/pass-string-view-by-value/ https://quuxplusone.github.io/blog/2021/11/09/pass-string-vi...