[Issue 17736] bigint opunary should be better performing

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17736

--- Comment #3 from hsteoh at quickfur.ath.cx ---
IMO, the refcounting idea is still valid, if a bit more complicated to
implement. It would be important for reducing GC load on BigInt-heavy code, I
think.

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