From ca461540689131714dca1cc4cd4e519e8a5d485f Mon Sep 17 00:00:00 2001
From: smatz <smatz@openttd.org>
Date: Wed, 20 Feb 2008 14:30:53 +0000
Subject: (svn r12192) -Fix: clamp various town variables to 16bit prior to
 returning the value

---
 src/core/math_func.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/core/math_func.hpp')

diff --git a/src/core/math_func.hpp b/src/core/math_func.hpp
index e20dc6065..8faa67c11 100644
--- a/src/core/math_func.hpp
+++ b/src/core/math_func.hpp
@@ -168,6 +168,18 @@ static inline int32 ClampToI32(const int64 a)
 	return (int32)a;
 }
 
+/**
+ * Reduce an usigned 64-bit int to an unsigned 16-bit one
+ *
+ * @param a The 64-bit value to clamp
+ * @return The 64-bit value reduced to a 16-bit value
+ * @see ClampU(uint, uint, uint)
+ */
+static inline uint16 ClampToU16(const uint64 a)
+{
+	return min(a, UINT16_MAX);
+}
+
 /**
  * Returns the (absolute) difference between two (scalar) variables
  *
-- 
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