.. _program_listing_file__tmp_ws_src_ecl_core_ecl_math_include_ecl_math_norms.hpp:

Program Listing for File norms.hpp
==================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_ecl_core_ecl_math_include_ecl_math_norms.hpp>` (``/tmp/ws/src/ecl_core/ecl_math/include/ecl/math/norms.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   /*****************************************************************************
   ** Ifdefs
   *****************************************************************************/
   
   #ifndef ECL_MATH_NORMS_HPP_
   #define ECL_MATH_NORMS_HPP_
   
   /*****************************************************************************
   ** Includes
   *****************************************************************************/
   
   #include <cmath>
   
   /*****************************************************************************
   ** Namespaces
   *****************************************************************************/
   
   namespace ecl {
   
   /*****************************************************************************
   ** Functors
   *****************************************************************************/
   class EuclideanNorm {
   public:
       template <typename T>
       T operator()(const T& x1, const T& x2) {
           return std::sqrt(x1*x1 + x2*x2);
       }
   
       template <typename T>
       T operator()(const T& x1, const T& x2, const T& x3) {
           return std::sqrt(x1*x1 + x2*x2 + x3*x3);
       }
   
       // n dimensional cases using vectors, valarrays and eigen vectors here.
   
       // maybe also a norm(vectorx, vectory) which is sqrt((x0-y0)^2+(x1-y1)^2.....)
   };
   
   /*****************************************************************************
   ** Functions
   *****************************************************************************/
   template <typename T>
   T euclidean_norm(const T& x1, const T& x2) {
       return std::sqrt(x1*x1 + x2*x2);
   }
   
   template <typename T>
   T euclidean_norm(const T& x1, const T& x2, const T& x3) {
       return std::sqrt(x1*x1 + x2*x2 + x3*x3);
   }
   
   } // namespace ecl
   
   #endif /* ECL_MATH_NORMS_HPP_ */