along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#if !defined(BITBOARD_H_INCLUDED)
+#ifndef BITBOARD_H_INCLUDED
#define BITBOARD_H_INCLUDED
#include "types.h"
/// lsb()/msb() finds the least/most significant bit in a nonzero bitboard.
/// pop_lsb() finds and clears the least significant bit in a nonzero bitboard.
-#if defined(USE_BSFQ)
+#ifdef USE_BSFQ
# if defined(_MSC_VER) && !defined(__INTEL_COMPILER)
return s;
}
-#else // if !defined(USE_BSFQ)
+#else // if defined(USE_BSFQ)
extern Square msb(Bitboard b);
extern Square lsb(Bitboard b);
#endif
-#endif // !defined(BITBOARD_H_INCLUDED)
+#endif // #ifndef BITBOARD_H_INCLUDED