HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-22 01:56:58 +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

12
src/bitboard.h
View File

@@ -124,13 +124,13 @@ inline Bitboard file_bb(Square s) {
}
/// shift_bb() moves a bitboard one step along direction Delta. Mainly for pawns
/// shift() moves a bitboard one step along direction D. Mainly for pawns
template<Square Delta>
inline Bitboard shift_bb(Bitboard b) {
return Delta == DELTA_N ? b << 8 : Delta == DELTA_S ? b >> 8
: Delta == DELTA_NE ? (b & ~FileHBB) << 9 : Delta == DELTA_SE ? (b & ~FileHBB) >> 7
: Delta == DELTA_NW ? (b & ~FileABB) << 7 : Delta == DELTA_SW ? (b & ~FileABB) >> 9
template<Square D>
inline Bitboard shift(Bitboard b) {
return D == NORTH ? b << 8 : D == SOUTH ? b >> 8
: D == NORTH_EAST ? (b & ~FileHBB) << 9 : D == SOUTH_EAST ? (b & ~FileHBB) >> 7
: D == NORTH_WEST ? (b & ~FileABB) << 7 : D == SOUTH_WEST ? (b & ~FileABB) >> 9
: 0;
}