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simplify opposite_colors

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protonspring
2018-12-08 10:57:25 -07:00
committed by Stéphane Nicolet
parent 5c2fbcd09b
commit fefc0c6789
2 changed files with 4 additions and 5 deletions
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5
src/types.h
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@@ -413,11 +413,6 @@ constexpr Rank relative_rank(Color c, Square s) {
return relative_rank(c, rank_of(s));
}
inline bool opposite_colors(Square s1, Square s2) {
int s = int(s1) ^ int(s2);
return ((s >> 3) ^ s) & 1;
}
constexpr Direction pawn_push(Color c) {
return c == WHITE ? NORTH : SOUTH;
}