From: Marco Costalba <mcostalba@gmail.com>
Date: Sat, 3 Jul 2010 15:02:07 +0000 (+0100)
Subject: Fix DIVIDE BY ZERO exception in init_search()
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=1d4e7bbdf5a8b2e87daaa54eea52cbe01d699fdb;hp=1d4e7bbdf5a8b2e87daaa54eea52cbe01d699fdb

Fix DIVIDE BY ZERO exception in init_search()

It happens that when d == 0 we calculate:

log(double(0 * 0) / 2)

Unfortunately, log(0) is "illegal" and can generate either a
floating point exception or return a nonsense "huge" value
depending on the platform.

This fixs in the proper way the GCC/ICC rounding difference,
bug was from our side, not in the intel compiler.

Also fixed some few other warnings.

Bug spotted by Richard Lloyd.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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