28
On harmful overuse of std::move - The Old New Thing (devblogs.microsoft.com)
submitted 2 years ago by [M] to c/cpp@programming.dev
22 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] 3 points 2 years ago (1 child)

Copy has a very different meaning between the two languages. In rust the equivalent of a c++ copy is a clone() call for anything non trivial

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 3 points 2 years ago (2 children)

    ...which is also explicit.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 4 child comments
    •
  • [–] 2 points 2 years ago (1 child)

    @BatmanAoD @Miaou It is just what you are used to.
    In C++ everything is a copy. Sometimes the compiler optimizes it away. clang-tidy may help. Having a clone() is very C-like.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 1 point 2 years ago* (last edited 2 years ago)

    That's a common idiom but the default behaviour is still implicit copy, which, with VLAs and no smart pointers, makes things arguably worse than in c++

  • permalink
  • fedilink
  • source
  • parent