Weird. I'd thought all values in Java were set to a defined value. Thought
we got rid of the unassigned stuff with C. But I don't delve into the JVM
and language spec enough so could be wrong very easily.
Hen
On 27 Sep 2002, Steve Downey wrote:
> CharRange uses an unassigned static character, UNSET, as a flag value
> for testing if the range is a range or a single value.
>
> This looks a little odd to me. I had the distinct impression that
> accessing an unassigned value was an error. However, the comparison
> works. I'm just not sure it's working as intended, and won't fail to
> work an a different VM?
>
> relevant code:
> /**
> * Used internally to represent null in a char.
> */
> private static char UNSET;
>
> // ...
>
> /**
> * Is this CharRange over many characters
> *
> * @return boolean true is many characters
> */
> public boolean isRange() {
> return this.close != UNSET;
> }
>
>
>
>
>
>
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