Proposal: Sameness operators
Thomas.Hawtin at Sun.COM
Tue Mar 31 04:09:00 PDT 2009
Derek Foster wrote:
> a $$ b "same as": a==null ? b==null : a.equals(b), or a == b for primitive types.
$ and $$ are valid identifier in (existing) Java. Not a lot of people
know that. http://jroller.com/tackline/entry/things_i_didn_t_know
> a !$ b "not same as": a==null ? b!=null : !a.equals(b), or a != b for primitive types.
> a >$ b "greater than or same": a.compareTo(b) >= 0, or a >= b for primitive types.
> a <$ b "less than or same": a.compareTo(b) <= 0, or a <= b for primitive types.
That's going to be jolly confusing for BigDecimal users (but I guess
that is not a state change).
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