MandatoryValidator.cpp

//------------------------------------------
// Includes
//------------------------------------------
#include "MantidKernel/MandatoryValidator.h"
#include "MantidKernel/EmptyValues.h"
#include <cmath>
#include <string>

namespace Mantid
{
  namespace Kernel
  {
    namespace Detail
    {
      /**
       * Specialization of checkIsEmpty for string
       * @param value :: A string object
       * @return True if the string is considered empty
       */
      template<>
      DLLExport bool checkIsEmpty(const std::string & value)
      {
        return value.empty();
      }
      /**
       * Specialization of checkIsEmpty for double values
       * @param value :: A double
       * @return True if the value is considered empty, see EmptyValues.h
       */
      template<>
      DLLExport bool checkIsEmpty(const double & value)
      {
        if( std::fabs(value - Mantid::EMPTY_DBL()) < 1e-08 ) return true;
        else return false;
      }
      /**
       * Specialization of checkIsEmpty for int
       * @param value :: A int value
       * @return True if the value is considered empty, see EmptyValues.h
       */
      template<>
      DLLExport bool checkIsEmpty(const int & value)
      {
        return (value == Mantid::EMPTY_INT());
      }
      /**
       * Specialization of checkIsEmpty for long
       * @param value :: A long value
       * @return True if the value is considered empty, see EmptyValues.h
       */
      template<>
      DLLExport bool checkIsEmpty(const long & value)
      {
        return (value == Mantid::EMPTY_LONG());
      }

    }
  }
}