[Issue 13348] std.uni.byGrapheme is impure

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13348

Steven Schveighoffer <schveiguy at yahoo.com> changed:

           What    |Removed                     |Added
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                 CC|                            |schveiguy at yahoo.com

--- Comment #5 from Steven Schveighoffer <schveiguy at yahoo.com> ---
Something doesn't seem right here. byGrapheme is a template function, including
a templated struct. purity should be inferred everywhere here, no?

The code itself seems pretty simple, seems like all the impurity comes from
Grapheme and possibly decodeGrapheme.

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