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Subject: Re: fast count function for bitboards

Author: Russell Reagan

Date: 17:48:48 09/22/02

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On September 22, 2002 at 15:57:09, Matthias Gemuh wrote:

>What is ">>>" ?

In Java there are two right shift operators. One is the signed right shift (>>)
and the other is the unsigned right shift (>>>). If you do a >> b in Java, and a
is a negative number, a will be negative after the >> call. If you do a >>> b, a
will be positive always. More specifically, >> fills the leftmost bits with
whatever the sign bit is (0 or 1, for positive and negative, respectively), and
>>> fills with zeros always.

The >> operator preserves the sign (positive or negative). The >>> operator does
not.

The >>> operator is the equivalent of >> in C/C++, I believe. Someone will
correct me if I'm wrong.

Russell



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