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std_unicode::char::decode_utf16 should be in core #49319
Description
The decode_utf16 function currently lives in the std_unicode crate. But, as far as I can tell, this function doesn't depend on any Unicode tables and has no reason to be in this crate.
I suggest moving this function (and its associated iterator) into the core crate. This will allow for decoding UTF-16 text under #![no_std] in stable Rust.
Activity
SimonSapin commentedon Mar 24, 2018
I agree that there is no reason for this not to be in libcore. Feel free to submit a PR and ping me for review.
More generally I wonder if we can rely of various platforms’ linkers to remove unused tables, and if so if there’s any reason to keep
std_unicodefromcoreat all. But that doesn’t need to block movingdecode_utf16specifically.SimonSapin commentedon Apr 5, 2018
#49698 fixes this.
Auto merge of #49698 - SimonSapin:unicode-for-everyone, r=alexcrichton