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Score enum should be at least 32 bits

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The compiler is allowed to chose the size of an enum variable
based on the values it is expected to store. So force the compiler
to use at least a 32 bit integer type for the Score.

MSVC and Intel do not change, while gcc under -O3 is affected
by this change.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2009-12-27 19:45:19 +01:00
parent 3f14f9a478
commit 0973cc2ef6
1 changed files with 1 additions and 1 deletions
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2
src/value.h
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@ -56,7 +56,7 @@ enum Value {
/// integer (enum), first LSB 16 bits are used to store endgame /// integer (enum), first LSB 16 bits are used to store endgame
/// value, while upper bits are used for midgame value. /// value, while upper bits are used for midgame value.
enum Score {}; enum Score { ENSURE_32_BIT_SIZE = 1 << 31 };
inline Value eg_value(Score s) { return Value(int16_t(s & 0xffff)); } inline Value eg_value(Score s) { return Value(int16_t(s & 0xffff)); }
inline Value mg_value(Score s) { return Value((int(s) + 32768) >> 16); } inline Value mg_value(Score s) { return Value((int(s) + 32768) >> 16); }