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0 pointslionkor2mo ago0 comments

I wrote lots of C++ before learning Rust, and I enjoyed it. Since learning Rust, I write no more C++. I found no place in which C++ is a better fit than Rust, and so it's my "new C++".

For example, high performance servers (voltlane.net), programming languages (https://github.com/HF-Foundation, https://github.com/lionkor/mcl-rs, and one private one), webservers (beampaint.com) and lots of other domains.

Rust is close to C++ in that it is a systems language that allows a reasonable level of zero-cost abstractions.

0 comments

pjmlp2mo ago

> found no place in which C++ is a better fit than Rust, and so it's my "new C++".

Writing the compiler toolchains that Rust depends on, industry standards like CUDA, SYSCL, Metal, Unreal or the VFX Reference Platform.

kprotty2mo ago

There are places a language could be a better fit, but which haven't adopted it. E.g. most languages over typescript on the backend, most systems programming languages over Java for games.

pjmlp2mo ago

The fallacy is to discuss programming languages in isolation without taking the whole ecosystem into consideration.

simonask2mo ago

Rust uses LLVM because it's pretty great, not because you couldn't implement LLVM in Rust.

Maybe cranelift will eventually surpass LLVM, but there isn't currently much reason to push for that.

estebank2mo ago

If anything, making cranelift an LLVM replacement would likely go counter to its stated goals of being a simple and fast code generator.

pjmlp2mo ago

Thus Rust cannot really replace C++ when its reference toolchain depends on it.

1 more reply

geon2mo ago

> Rust is close to C++ in that it is a systems language that allows a reasonable level of zero-cost abstractions.

That's like saying php is close to haskell because they both have garbage collection.

j / k navigate · click thread line to collapse

0 comments

pjmlp2mo ago

> found no place in which C++ is a better fit than Rust, and so it's my "new C++".

Writing the compiler toolchains that Rust depends on, industry standards like CUDA, SYSCL, Metal, Unreal or the VFX Reference Platform.

kprotty2mo ago

There are places a language could be a better fit, but which haven't adopted it. E.g. most languages over typescript on the backend, most systems programming languages over Java for games.

pjmlp2mo ago

The fallacy is to discuss programming languages in isolation without taking the whole ecosystem into consideration.

simonask2mo ago

Rust uses LLVM because it's pretty great, not because you couldn't implement LLVM in Rust.

Maybe cranelift will eventually surpass LLVM, but there isn't currently much reason to push for that.

estebank2mo ago

If anything, making cranelift an LLVM replacement would likely go counter to its stated goals of being a simple and fast code generator.

pjmlp2mo ago

Thus Rust cannot really replace C++ when its reference toolchain depends on it.

1 more reply

geon2mo ago

> Rust is close to C++ in that it is a systems language that allows a reasonable level of zero-cost abstractions.

That's like saying php is close to haskell because they both have garbage collection.

j / k navigate · click thread line to collapse