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Comment by ncmncm | Hacker News Reader

What makes "pure" a notable or (presumably) desirable quality? If bits of it were in C++, and that made it faster, how would that make it less useful?

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I included that for a couple of reasons: 1) It's unusual. Historically, C# is more of a businessy thing, with a bit of game stuff on the side, mainly in the form of scripting. Extremely high performance C# code is even stranger. 2) It's more easily portable than a mixed library. It's definitely not impossible to make/use a cross platform mixed library (they're all over the place), but depending only on one toolchain is just less complicated.

So not a big deal, just a notable quirk.

> 1) It's unusual. Historically, C# is more of a businessy thing, with a bit of game stuff on the side, mainly in the form of scripting. Extremely high performance C# code is even stranger.

Unity is C#, no? I remember reading that they are moving most of the traditionally C++ 'backend' engine code to C# now, too.

Edit: Found the article: https://lucasmeijer.com/posts/cpp_unity/

Unity is in the process of moving more of their codebase into C#, backed by some in-house compiler work, yes. And they did indeed use C# extensively before then for game scripting, even if not exactly 'pure' or high performance in the same sense.

The work in Unity's Burst/HPC# is very recent, though, and the CoreCLR/language features I rely on in bepuphysics are still pretty obscure. I wouldn't expect most people outside of the weird niche I live in to know about the ecosystem's progress.

In other words, I was just trying to get an unaware visitor to raise an eyebrow.

We took that distracting bit out of the title above.

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