LRU cache for ~=

[Christopher Wright]

Brad Roberts wrote:
> On Mon, 19 Oct 2009, Walter Bright wrote:
> 
>> Denis Koroskin wrote:
>>> Safe as in SafeD (i.e. no memory corruption) :)
>> Right. The problems with other definitions of safe is they are too
>> ill-defined.
> 
> There's SafeD, which has a fairly formal definition.

But a fairly generic name, which confuses people repeatedly. I'm not the 
first to recommend that the name be changed. It does more harm than good.