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Better document square flipping helpers

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-04-01 11:30:54 +01:00
parent 9bbd27a80f
commit 6e00aa6bae
3 changed files with 7 additions and 7 deletions
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6
src/types.h
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@@ -327,7 +327,7 @@ inline Color operator~(Color c) {
}
inline Square operator~(Square s) {
return Square(s ^ 56);
return Square(s ^ 56); // Vertical flip SQ_A1 -> SQ_A8
}
inline Value mate_in(int ply) {
@@ -354,7 +354,7 @@ inline Square make_square(File f, Rank r) {
return Square((r << 3) | f);
}
inline bool square_is_ok(Square s) {
inline bool is_ok(Square s) {
return s >= SQ_A1 && s <= SQ_H8;
}
@@ -367,7 +367,7 @@ inline Rank rank_of(Square s) {
}
inline Square mirror(Square s) {
return Square(s ^ 7);
return Square(s ^ 7); // Horizontal flip SQ_A1 -> SQ_H1
}
inline Square relative_square(Color c, Square s) {