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A comment on Using D to Create the World’s Fastest File System. Parent comment

Re:Using D to Create the World’s Fastest File System by jordigh on Wednesday December 05, 2018 @10:48AM (#18609285)
D's compiler was never "closed source" if by that you mean "source not visible". It had a weird non-open source license for a long time, but the source has always been visible.

The weird license did use to scare me away, but that's very much a thing of the past now and now it has a standard free license.

https://news.ycombinator.com/item?id=14060846

I don't think D's features are any less exciting than Rust's, but Rust has had a lot of RESF backed by Mozilla.

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Re:Using D to Create the World’s Fastest File System by ryan_lane on Wednesday December 05, 2018 @03:29PM (#18612196)
Source code being visible doesn't make it open source. It had a personal-use-only license, which isn't a valid OSSI license (which is what makes something open source).
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Re:Using D to Create the World’s Fastest File System by jordigh on Wednesday December 05, 2018 @04:30PM (#18612785)
That's why I qualified it with "if that's what you mean by closed source". I don't know if all source is either open or closed and anything that isn't OSI-approved is closed. I don't think that's what people usually mean by "closed source".

I also freely granted that dmd's ad-hoc license wasn't open source despite having visible source.

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