Retire square_is_weak()

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 8a902502acbee50006dfdd4016272b7a4f4fd032..b57cc3c7468d83f24fca51883ca6d83e07a5c05e 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -245,7 +245,7 @@ void Position::set_castling_rights(char token) {
     Square sqH = relative_square(c, SQ_H1);
     Square rsq, ksq = king_square(c);
 
-    token = toupper(token);
+    token = char(toupper(token));
 
     if (token == 'K')
         for (rsq = sqH; piece_on(rsq) != make_piece(c, ROOK); rsq--) {}