SymbolTable.hash uses only 27 bits, when 31 are available
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Key: XERCESJ-1464
URL: https://issues.apache.org/jira/browse/XERCESJ-1464
Project: Xerces2-J
Issue Type: Improvement
Affects Versions: 2.10.0
Environment: any
Reporter: Roland Illig
Priority: Minor
The hash(...) functions mask out the five most significant bits. The usual
approach is to only mask out the sign bit.
This naturally raises the question whether the omission of one F in 0x7FF_FFFF
was intentional or accidental.
Even if it is changed to 0x7FFF_FFFF there shouldn't be large performance
improvements since the distribution of the entries wouldn't be much better than
now.
In fact, I'm just curious why you chose 0x7FF_FFFF.
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