Simplify and shrink code.
No functional change.
const string Position::fen() const {
std::ostringstream ss;
- Square sq;
- int emptyCnt;
for (Rank rank = RANK_8; rank >= RANK_1; rank--)
{
- emptyCnt = 0;
-
for (File file = FILE_A; file <= FILE_H; file++)
{
- sq = file | rank;
+ Square sq = file | rank;
if (is_empty(sq))
- emptyCnt++;
- else
{
- if (emptyCnt > 0)
- {
- ss << emptyCnt;
- emptyCnt = 0;
- }
- ss << PieceToChar[piece_on(sq)];
+ int emptyCnt = 1;
+
+ for ( ; file < FILE_H && is_empty(sq++); file++)
+ emptyCnt++;
+
+ ss << emptyCnt;
}
+ else
+ ss << PieceToChar[piece_on(sq)];
}
- if (emptyCnt > 0)
- ss << emptyCnt;
-
if (rank > RANK_1)
ss << '/';
}