utils.h

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#pragma once
 
#include <cmath>
#include <limits>
 
namespace pcl
{
  namespace utils
  {
    /** \brief Check if val1 and val2 are equal to an epsilon extent
      * \param[in] val1 first number to check
      * \param[in] val2 second number to check
      * \param[in] eps epsilon
      * \return true if val1 is equal to val2, false otherwise.
      */
    template<typename T> bool
    equal (T val1, T val2, T eps = std::numeric_limits<T>::min ())
    {
      return (std::fabs (val1 - val2) < eps);
    }
 
   /** \brief Utility function to eliminate unused variable warnings. */
    template<typename ...T> void
    ignore(const T&...)
    {
    }
  } // namespace utils
} // namespace pcl