euclidean_norm.h

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#ifndef MATHTOOLS_EUCLIDEAN_NORM_H
#define MATHTOOLS_EUCLIDEAN_NORM_H

#include "sqr_euclidean_norm.h"
#include <cmath>

namespace math {
namespace internal {

struct EuclideanFunc
{
  template<typename COORD_ITERATOR>
  static auto fromRange(COORD_ITERATOR begin, COORD_ITERATOR end) -> decltype(typeHelper(*begin))
  { return std::sqrt(SqrEuclideanFunc::fromRange(begin, end)); }

  template<std::size_t N, typename COORD_TYPE>
  static typename NumTraits<COORD_TYPE>::Real fromPtr(const COORD_TYPE* coordPtr)
  { return std::sqrt(SqrEuclideanFunc::fromPtr<N, COORD_TYPE>(coordPtr)); }
};

template<> struct NormTraits<internal::EuclideanFunc>
{
  typedef ArityNormSpecializationTag NormCategory;
};

} // namespace internal

typedef Norm<math::internal::EuclideanFunc> EuclideanNorm;

} // namespace math

#endif // MATHTOOLS_EUCLIDEAN_NORM_H