Fix ambiguity between clamp implementations

[stockfish] / src / misc.h

diff --git a/src/misc.h b/src/misc.h
index a3780ba599d1ce6746d8edfa533d1517e8128ade..e0e0e98be8357cee894b2133ead6f654c0abc3f4 100644 (file)
--- a/src/misc.h
+++ b/src/misc.h
@@ -64,6 +64,14 @@ std::ostream& operator<<(std::ostream&, SyncCout);
 #define sync_cout std::cout << IO_LOCK
 #define sync_endl std::endl << IO_UNLOCK
 
+namespace Utility {
+
+/// Clamp a value between lo and hi. Available in c++17.
+template<class T> constexpr const T& clamp(const T& v, const T& lo, const T& hi) {
+  return v < lo ? lo : v > hi ? hi : v;
+}
+
+}
 
 /// xorshift64star Pseudo-Random Number Generator
 /// This class is based on original code written and dedicated