[Issue 13348] std.uni.Grapheme is impure due to using C malloc and friends

[via Digitalmars-d-bugs]

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

--- Comment #11 from Dmitry Olshansky <dmitry.olsh at gmail.com> ---
> At this point, if we were to fix purity, I think this is the way to go. From your comments in the code, you said that most of the time allocations will not happen. I'm sure this varies with the language being processed, but it's probably mostly true.

Problem is there is @nogc crowd and then there is pure @safe crowd. I can't
satisfy both.

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