Zig as an alternative to writing unsafe Rust

Post by edflsafoiewq » Tue, Mar 07, 2023, 7:50 PM UTC

ilrwbwrkhv wrote: post #24

ok123456 wrote: post #9

This pretty much mirrors my experience. Rust is the inverse of Perl: It makes the easy stuff hard. Writing basic data structures isn't a niche, esoteric edge case. There may be a crate that "solves" what you're trying to do. But does it rely on the std---(i.e., is it unusable for systems programming)? Is it implemented making gratuitous copies of data everywhere? Does it have a hideous interface which will then pollu…

On top of that Rust might be the ugliest modern language.

Post by guipsp » Tue, Mar 07, 2023, 7:50 PM UTC

foldr wrote: post #66

pie_flavor wrote: post #54

Earlier quoted context omitted.

It's not about actual ugliness, it's just something that is hard to articulate as something other than ugliness. https://matklad.github.io/2023/01/26/rusts-ugly-syntax.html

One random thing that bugs me about Rust's syntax is array initialization. In Go I can initialize an array (or strictly speaking a slice) of structs like this: var foo []my_struct = {{"foo", 1, "bar"}, {"foo", 1, "bar}, ...} This is often useful in tests (where each struct value represents a test case). Rust doesn't seem to offer any similarly compact initialization syntax for arrays or Vecs. You have to write some a…

Post by zamalek » Tue, Mar 07, 2023, 7:53 PM UTC

ilrwbwrkhv wrote: post #24

ok123456 wrote: post #9

This pretty much mirrors my experience. Rust is the inverse of Perl: It makes the easy stuff hard. Writing basic data structures isn't a niche, esoteric edge case. There may be a crate that "solves" what you're trying to do. But does it rely on the std---(i.e., is it unusable for systems programming)? Is it implemented making gratuitous copies of data everywhere? Does it have a hideous interface which will then pollu…

On top of that Rust might be the ugliest modern language.

Post by rom-antics » Tue, Mar 07, 2023, 7:54 PM UTC

foldr wrote: post #66

pie_flavor wrote: post #54

Earlier quoted context omitted.

It's not about actual ugliness, it's just something that is hard to articulate as something other than ugliness. https://matklad.github.io/2023/01/26/rusts-ugly-syntax.html

One random thing that bugs me about Rust's syntax is array initialization. In Go I can initialize an array (or strictly speaking a slice) of structs like this: var foo []my_struct = {{"foo", 1, "bar"}, {"foo", 1, "bar}, ...} This is often useful in tests (where each struct value represents a test case). Rust doesn't seem to offer any similarly compact initialization syntax for arrays or Vecs. You have to write some a…

  const foos = [("foo", 1, "bar"), ("foo", 1, "bar"), ...];
  for (str1, num, str2) in &foos {
      // ...
  }

Post by woodruffw » Tue, Mar 07, 2023, 7:57 PM UTC

guipsp wrote: post #69

woodruffw wrote: post #36

> Unsafe Rust is hard. A lot harder than C, this is because unsafe Rust has a lot of nuanced rules about undefined behaviour (UB) — thanks to the borrow checker — that make it easy to perniciously break things and introduce bugs. I don't think this is correct: Rust makes writing unsafe Rust correctly more onerous than writing C, but the actual rules for undefined behavior are the virtually same as in C: if you alias…

The rust undefined behaviour rules are stricter than C: mutating a non mutable reference is UB, for example. Non mutable references don't exist in C.