Use #ifndef instead of #if !defined

[stockfish] / src / timeman.h

diff --git a/src/timeman.h b/src/timeman.h
index 484513bb18c5265530e5ccae2267e962dffcd6e4..e12b0007f302f37f07cb40ea8c5f6fce07a3f615 100644 (file)
--- a/src/timeman.h
+++ b/src/timeman.h
@@ -17,7 +17,7 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if !defined(TIMEMAN_H_INCLUDED)
+#ifndef TIMEMAN_H_INCLUDED
 #define TIMEMAN_H_INCLUDED
 
 /// The TimeManager class computes the optimal time to think depending on the
@@ -36,4 +36,4 @@ private:
   int unstablePVExtraTime;
 };
 
-#endif // !defined(TIMEMAN_H_INCLUDED)
+#endif // #ifndef TIMEMAN_H_INCLUDED