• lysdexic@programming.devOPM
    link
    fedilink
    English
    arrow-up
    1
    ·
    11 months ago

    I wonder if the language could be updated so these extra std::move invocations actually become harmless? return std::move is something that I see used quite a bit.

    These std::move invocations are harmless, as they only cast objects to their rvalue reference.

    The destructive bit takes place in the type they are assigned to, as it invokes either a move constructor or a move assignment operator, and calling those implies that the object you just passed to std::move will be invalidated after the call and should not be used subsequently.