[cleanup] Move complex conjugation et al to math.hh

dune/common/math.hh

@@ -96,7 +96,29 @@ namespace Dune
     enum { factorial = 1 };
   };
 
+  //! compute conjugate complex of x
+  // conjugate complex does nothing for non-complex types
+  template<class K>
+  inline K conjugateComplex (const K& x)
+  {
+    return x;
+  }
 
+#ifndef DOXYGEN
+  // specialization for complex
+  template<class K>
+  inline std::complex<K> conjugateComplex (const std::complex<K>& c)
+  {
+    return std::complex<K>(c.real(),-c.imag());
+  }
+#endif
+
+  //! Return the sign of the value
+  template <class T>
+  int sign(const T& val)
+  {
+    return (val < 0 ? -1 : 1);
+  }
 
 }
 

dune/common/misc.hh

@@ -31,30 +31,6 @@ namespace Dune {
           @{
    */
 
-  //! compute conjugate complex of x
-  // conjugate complex does nothing for non-complex types
-  template<class K>
-  inline K conjugateComplex (const K& x)
-  {
-    return x;
-  }
-
-#ifndef DOXYGEN
-  // specialization for complex
-  template<class K>
-  inline std::complex<K> conjugateComplex (const std::complex<K>& c)
-  {
-    return std::complex<K>(c.real(),-c.imag());
-  }
-#endif
-
-  //! Return the sign of the value
-  template <class T>
-  int sign(const T& val)
-  {
-    return (val < 0 ? -1 : 1);
-  }
-
   /** \brief Compute the square of T */
   /**
    * \code