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Awesome stuff. I'll echo that Rust really does seem to be something new and exciting in the native land of languages. I feel like it's still got some rough sp

Awesome stuff. I'll echo that Rust really does seem to be something new and exciting in the native land of languages. I feel like it's still got some rough spots(around FFI and just some APIs still being unstable) but there's so many things to like with the current direction.

rhelmer 11y ago
What do you feel is rough around FFI? Safer, zero-cost bindings to C libraries - what's not to like? :)
- vvanders 11y ago
  CString::from_ptr is unstable - https://doc.rust-lang.org/stable/std/ffi/struct.CString.html https://doc.rust-lang.org/stable/std/ffi/struct.CString.html clib is marked as unstable - https://doc.rust-lang.org/stable/libc/types/os/arch/c95/type.c_char.html https://doc.rust-lang.org/stable/libc/types/os/arch/c95/type... Most of the intrinsic types are usable but anything involving strings seems to hit unstable/experimental branch pretty quickly. I'm sure it'll improve I was just a bit surprised to not see it mentioned in the docs.
  - steveklabnik 11y ago
    You should use libc from crates.io, which is stable. Not the compiler-internal one you linked to.
    - vvanders 11y ago
      Ah, the docs around FFI say that libc is a part of the standard library so it wasn't clear that I'd have to pull that from crates.io.
      - steveklabnik 11y ago
        Hmm, can you point me to where they say that so I can fix it? Seems bad. (Also, the error message when you don't have a `#![feature(libc)]` should say "hey, please use the external crate thanks")
        vvanders 11y ago
        https://doc.rust-lang.org/book/ffi.html https://doc.rust-lang.org/book/ffi.html at the end of "Interoperability with foreign code" Yeah, that error message sent me down the wrong path :).
        steveklabnik 11y ago
        Ahh excellent, thank you! https://github.com/rust-lang/rust/issues/28053 https://github.com/rust-lang/rust/issues/28053
        vvanders 11y ago
        Nice! Let me add another plus for Rust is the community around it.
  - tatterdemalion 11y ago
    Yeah its unfortunate that the some FFI APIs are still marked unstable, but Rust is still a language with memory safety, no garbage collector, and opt-in to a C-compatible ABI. That's a pretty big deal in my opinion!
    - CyberDildonics 11y ago
      You just repeated exactly what the OP was saying.

rhelmer 11y ago

What do you feel is rough around FFI? Safer, zero-cost bindings to C libraries - what's not to like? :)

vvanders 11y ago
CString::from_ptr is unstable - https://doc.rust-lang.org/stable/std/ffi/struct.CString.html https://doc.rust-lang.org/stable/std/ffi/struct.CString.html clib is marked as unstable - https://doc.rust-lang.org/stable/libc/types/os/arch/c95/type.c_char.html https://doc.rust-lang.org/stable/libc/types/os/arch/c95/type... Most of the intrinsic types are usable but anything involving strings seems to hit unstable/experimental branch pretty quickly. I'm sure it'll improve I was just a bit surprised to not see it mentioned in the docs.
- steveklabnik 11y ago
  You should use libc from crates.io, which is stable. Not the compiler-internal one you linked to.
  - vvanders 11y ago
    Ah, the docs around FFI say that libc is a part of the standard library so it wasn't clear that I'd have to pull that from crates.io.
    - steveklabnik 11y ago
      Hmm, can you point me to where they say that so I can fix it? Seems bad. (Also, the error message when you don't have a `#![feature(libc)]` should say "hey, please use the external crate thanks")
      - vvanders 11y ago
        https://doc.rust-lang.org/book/ffi.html https://doc.rust-lang.org/book/ffi.html at the end of "Interoperability with foreign code" Yeah, that error message sent me down the wrong path :).
        steveklabnik 11y ago
        Ahh excellent, thank you! https://github.com/rust-lang/rust/issues/28053 https://github.com/rust-lang/rust/issues/28053
        vvanders 11y ago
        Nice! Let me add another plus for Rust is the community around it.
- tatterdemalion 11y ago
  Yeah its unfortunate that the some FFI APIs are still marked unstable, but Rust is still a language with memory safety, no garbage collector, and opt-in to a C-compatible ABI. That's a pretty big deal in my opinion!
  - CyberDildonics 11y ago
    You just repeated exactly what the OP was saying.