HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-23 10:36:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

Rename shift_bb() to shift()

Browse Source 
Rename shift_bb() to shift(), and DELTA_S to SOUTH, etc.
to improve code readability, especially in evaluate.cpp
when they are used together:

    old b = shift_bb<DELTA_S>(pos.pieces(PAWN))
    new b = shift<SOUTH>(pos.pieces(PAWN))

While there fix some small code style issues.

No functional change.
This commit is contained in:
Stéphane Nicolet
2016-09-23 19:28:34 +02:00
committed by Marco Costalba
parent 351844061e
commit 7ae3c05795
12 changed files with 103 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/bitbase.cpp
View File

@@ -123,9 +123,9 @@ namespace {
// Immediate win if a pawn can be promoted without getting captured
else if ( us == WHITE
&& rank_of(psq) == RANK_7
&& ksq[us] != psq + DELTA_N
&& ( distance(ksq[~us], psq + DELTA_N) > 1
|| (StepAttacksBB[KING][ksq[us]] & (psq + DELTA_N))))
&& ksq[us] != psq + NORTH
&& ( distance(ksq[~us], psq + NORTH) > 1
|| (StepAttacksBB[KING][ksq[us]] & (psq + NORTH))))
result = WIN;
// Immediate draw if it is a stalemate or a king captures undefended pawn
@@ -166,12 +166,12 @@ namespace {
if (Us == WHITE)
{
if (rank_of(psq) < RANK_7) // Single push
r |= db[index(Them, ksq[Them], ksq[Us], psq + DELTA_N)];
r |= db[index(Them, ksq[Them], ksq[Us], psq + NORTH)];
if ( rank_of(psq) == RANK_2 // Double push
&& psq + DELTA_N != ksq[Us]
&& psq + DELTA_N != ksq[Them])
r |= db[index(Them, ksq[Them], ksq[Us], psq + DELTA_N + DELTA_N)];
&& psq + NORTH != ksq[Us]
&& psq + NORTH != ksq[Them])
r |= db[index(Them, ksq[Them], ksq[Us], psq + NORTH + NORTH)];
}
return result = r & Good ? Good : r & UNKNOWN ? UNKNOWN : Bad;