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Use bool(Bitboard b) instead of !!b (#1321)

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The idiom !!b is confusing newcomers (e.g. Stefan needs explaining here https://groups.google.com/d/msg/fishcooking/vYqnsRI4brY/Gaf60QuACwAJ).

No functional change.
This commit is contained in:
Joost VandeVondele
2017-12-03 18:29:55 +01:00
committed by Marco Costalba
parent 28b6a457c2
commit 2acda1fde3
5 changed files with 7 additions and 8 deletions
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8
src/evaluate.cpp
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@@ -342,12 +342,12 @@ namespace {
// Bonus for outpost squares
bb = OutpostRanks & ~pe->pawn_attacks_span(Them);
if (bb & s)
score += Outpost[Pt == BISHOP][!!(attackedBy[Us][PAWN] & s)] * 2;
score += Outpost[Pt == BISHOP][bool(attackedBy[Us][PAWN] & s)] * 2;
else
{
bb &= b & ~pos.pieces(Us);
if (bb)
score += Outpost[Pt == BISHOP][!!(attackedBy[Us][PAWN] & bb)];
score += Outpost[Pt == BISHOP][bool(attackedBy[Us][PAWN] & bb)];
}
// Bonus when behind a pawn
@@ -388,7 +388,7 @@ namespace {
// Bonus when on an open or semi-open file
if (pe->semiopen_file(Us, file_of(s)))
score += RookOnFile[!!pe->semiopen_file(Them, file_of(s))];
score += RookOnFile[bool(pe->semiopen_file(Them, file_of(s)))];
// Penalty when trapped by the king, even more if the king cannot castle
else if (mob <= 3)
@@ -450,7 +450,7 @@ namespace {
kingDanger = kingAttackersCount[Them] * kingAttackersWeight[Them]
+ 102 * kingAdjacentZoneAttacksCount[Them]
+ 191 * popcount(kingRing[Us] & weak)
+ 143 * !!pos.pinned_pieces(Us)
+ 143 * bool(pos.pinned_pieces(Us))
- 848 * !pos.count<QUEEN>(Them)
- 9 * mg_value(score) / 8
+ 40;