[cleanup] Move class Factorial from misc.hh to math.hh

dune/common/math.hh

@@ -79,6 +79,25 @@ namespace Dune
   {};
 #endif // DOXYGEN
 
+
+  //! Calculates the factorial of m at compile time
+  template <int m>
+  struct Factorial
+  {
+    //! factorial stores m!
+    enum { factorial = m * Factorial<m-1>::factorial };
+  };
+
+  //! end of recursion of factorial via specialization
+  template <>
+  struct Factorial<0>
+  {
+    // 0! = 1
+    enum { factorial = 1 };
+  };
+
+
+
 }
 
 #endif // #ifndef DUNE_MATH_HH

dune/common/misc.hh

@@ -21,6 +21,7 @@
 #include "exceptions.hh"
 #include <dune/common/typetraits.hh>
 #include <dune/common/stringutility.hh>
+#include <dune/common/math.hh>
 
 namespace Dune {
 
@@ -82,22 +83,6 @@ namespace Dune {
     enum { power = 1 };
   };
 
-  //! Calculates the factorial of m at compile time
-  template <int m>
-  struct Factorial
-  {
-    //! factorial stores m!
-    enum { factorial = m * Factorial<m-1>::factorial };
-  };
-
-  //! end of recursion of factorial via specialization
-  template <>
-  struct Factorial<0>
-  {
-    // 0! = 1
-    enum { factorial = 1 };
-  };
-
   //********************************************************************
   //
   // generate filenames with timestep number in it