Re: equality and null pointers

Lew <lew@xxxxxxxxxxxxxxxxxxxx> writes:

Why would one want NaN to equal NaN? Doesn't that violate the
fundamental meaning of NaN?

Apparently, at least when you want to use Doubles as hash table keys.
See
<http://java.sun.com/javase/6/docs/api/java/lang/Double.html#equals(java.lang.Object)>.

It also makes sense when you're, say, writing data marshaling and
unmarshaling code and need to test it.

--
Jaakko Kangasharju, Helsinki Institute for Information Technology
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