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

Move pawn_attacks_bb() helper to bitboard.h

Browse Source 
No functional change.
This commit is contained in:
Stéphane Nicolet
2018-02-21 22:31:38 +01:00
parent 820c5c25b6
commit 52f92d05a9
4 changed files with 13 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/bitboard.h
View File

@@ -160,6 +160,14 @@ constexpr Bitboard shift(Bitboard b) {
: 0;
}
/// pawn_attacks_bb() returns the pawn attacks for the given color from the
/// squares in the given bitboard.
template<Color c>
constexpr Bitboard pawn_attacks_bb(Bitboard b) {
return c == WHITE ? shift<NORTH_WEST>(b) | shift<NORTH_EAST>(b)
: shift<SOUTH_WEST>(b) | shift<SOUTH_EAST>(b);
}
/// adjacent_files_bb() returns a bitboard representing all the squares on the
/// adjacent files of the given one.