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Rust in Linux lead retires rather than deal with more “nontechnical nonsense” (arstechnica.com)

submitted 2 weeks ago by tux0r@feddit.org to c/linux@lemmy.ml

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Linux people doing Linux things, it seems.

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[-] Giooschi@lemmy.world 7 points 2 weeks ago

"safe by default" can be done by starting your files with @safe:

Last time I heard about that it was much more limited than Rust, for example it even disallowed taking references to local variables. Has something changed since then?

[-] ZILtoid1991@lemmy.world 0 points 2 weeks ago

D has many memory safety features. For local variables, one should use pointers, otherwise ref does references that are guaranteed to be valid to their lifetime, and thus have said limitations.

[-] Giooschi@lemmy.world 5 points 2 weeks ago

For local variables, one should use pointers, otherwise ref does references that are guaranteed to be valid to their lifetime, and thus have said limitations.

Should I take this to mean that pointers instead are not guaranteed to be valid, and thus are not memory safe?

[-] ZILtoid1991@lemmy.world 1 points 2 weeks ago

Pointers are not guaranteed to be safe. DIP1000 was supposed to solve the issue of a pointer referencing to a now expired variable (see example below), but it's being replaced by something else instead.

int* p;
{
  int q = 42;
  p = &q;
}
writeln(*p);     //ERROR: This will cause memory leakage, due to q no longer existing

[-] Giooschi@lemmy.world 3 points 2 weeks ago

Pointers are not guaranteed to be safe

So I guess they are forbidden in @safe mode?

but it's being replaced by something else instead

Do you know what is the replacement? I tried looking up DIP1000 but it only says "superceded" without mentioning by what.

This makes me wonder how ready D is for someone that wants to extensively use @safe though.

[-] ZILtoid1991@lemmy.world 2 points 2 weeks ago

https://github.com/ZILtoid1991/newxml/tree/main

This XML parser of mine uses safe by default.

[-] Giooschi@lemmy.world 2 points 2 weeks ago

It also seems to require a GC though...

newxml is GC only, for simplicity sake.

this post was submitted on 03 Sep 2024

437 points (97.6% liked)

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