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Simplify distance (#2109)

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Only called with Squares as argument, so remove unused variants.

As this is just syntax changes, only verified bench at high depth.

No functional change.
This commit is contained in:
Joost VandeVondele
2019-04-18 16:53:52 +02:00
committed by Marco Costalba
parent c4fc00ec49
commit f21b503982
2 changed files with 5 additions and 9 deletions
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4
src/endgame.cpp
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@@ -635,8 +635,6 @@ ScaleFactor Endgame<KBPPKB>::operator()(const Position& pos) const {
Square ksq = pos.square<KING>(weakSide);
Square psq1 = pos.squares<PAWN>(strongSide)[0];
Square psq2 = pos.squares<PAWN>(strongSide)[1];
Rank r1 = rank_of(psq1);
Rank r2 = rank_of(psq2);
Square blockSq1, blockSq2;
if (relative_rank(strongSide, psq1) > relative_rank(strongSide, psq2))
@@ -670,7 +668,7 @@ ScaleFactor Endgame<KBPPKB>::operator()(const Position& pos) const {
&& opposite_colors(ksq, wbsq)
&& ( bbsq == blockSq2
|| (pos.attacks_from<BISHOP>(blockSq2) & pos.pieces(weakSide, BISHOP))
|| distance(r1, r2) >= 2))
|| distance<Rank>(psq1, psq2) >= 2))
return SCALE_FACTOR_DRAW;
else if ( ksq == blockSq2