On Wednesday, 7 March 2018 at 13:24:25 UTC, Jonathan M Davis wrote:
I'd actually argue that that's the lesser of the problems with auto-decoding. The big problem is that it's auto-decoding. Code points are almost always the wrong level to be operating at.

For me the fundamental problem is having char[] in the language at all, meaning a Unicode string. Arbitrary slicing and indexing are not Unicode compatible, if we revisit this we need a String type that doesn't support those operations. Plus the issue of string validation - a Unicode string type should be assumed to have valid contents - unsafe data should only be checked at string construction time, so iterating should always be nothrow.

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