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Rewrite bit counting functions

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Get rid of macros and use templates instead,
this is safer and allows us fix the warning:

ISO C++ forbids braced-groups within expressions

That broke compilation with -pedantic flag under
gcc and POPCNT enabled.

No functional and no performance change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-10-04 11:45:04 +02:00
parent 3249777cdb
commit d4876dc963
8 changed files with 66 additions and 69 deletions
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3
src/pawns.cpp
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@@ -147,6 +147,7 @@ Score PawnInfoTable::evaluate_pawns(const Position& pos, Bitboard ourPawns,
Rank r;
bool passed, isolated, doubled, opposed, chain, backward, candidate;
Score value = SCORE_ZERO;
const BitCountType Max15 = CpuIs64Bit ? CNT64_MAX15 : CNT32_MAX15;
const Square* ptr = pos.piece_list_begin(Us, PAWN);
// Initialize halfOpenFiles[]
@@ -206,7 +207,7 @@ Score PawnInfoTable::evaluate_pawns(const Position& pos, Bitboard ourPawns,
// Test for candidate passed pawn
candidate = !(opposed | passed)
&& (b = attack_span_mask(opposite_color(Us), s + pawn_push(Us)) & ourPawns) != EmptyBoardBB
&& count_1s_max_15(b) >= count_1s_max_15(attack_span_mask(Us, s) & theirPawns);
&& count_1s<Max15>(b) >= count_1s<Max15>(attack_span_mask(Us, s) & theirPawns);
// In order to prevent doubled passed pawns from receiving a too big
// bonus, only the frontmost passed pawn on each file is considered as