(svn r23466) -Fix [FS#4871, FS#4874]: assertion triggered when resizing a window during ReInit by an amount that's not a multiple of the resize interval

src/core/math_func.hpp

@@ -329,6 +329,17 @@ static FORCEINLINE uint CeilDiv(uint a, uint b)
 	return (a + b - 1) / b;
 }
 
+/**
+ * Computes ceil(a / b) * b for non-negative a and b.
+ * @param a Numerator
+ * @param b Denominator
+ * @return a rounded up to the nearest multiple of b.
+ */
+static FORCEINLINE uint Ceil(uint a, uint b)
+{
+	return CeilDiv(a, b) * b;
+}
+
 /**
  * Computes round(a / b) for signed a and unsigned b.
  * @param a Numerator