FormattedDouble.hpp

Go to the documentation of this file.

//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 3.0 of the License, or
//  any later version.
//
//  The GNSSTk is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
//
//==============================================================================
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin, under contract to an agency or agencies
//  within the U.S. Department of Defense. The U.S. Government retains all
//  rights to use, duplicate, distribute, disclose, or release this software.
//
//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
//
//==============================================================================
 
#ifndef GNSSTK_FORMATTEDDOUBLE_HPP
#define GNSSTK_FORMATTEDDOUBLE_HPP
 
#include <iostream>
#include "StringUtils.hpp"
 
namespace gnsstk
{
   class FormattedDouble
   {
   public:
      FormattedDouble(double d,
                      StringUtils::FFLead lead,
                      unsigned mantissa = 0, unsigned exponent = 2,
                      unsigned width = 0, char expChar = 'e',
                      StringUtils::FFSign sign = StringUtils::FFSign::NegOnly,
                      StringUtils::FFAlign align = StringUtils::FFAlign::Left);
 
      explicit FormattedDouble(unsigned width = 0, char expChar = 'e');
 
      explicit FormattedDouble(const std::string& str, unsigned width = 0,
                               char expChar = 'e');
 
      operator double() const
      { return val; }
 
      operator double&()
      { return val; }
 
      inline operator std::string();
 
      inline FormattedDouble operator/(double d) const;
 
      inline FormattedDouble operator*(double d) const;
 
      FormattedDouble& operator++()
      { val++; return *this; }
      FormattedDouble operator++(int)
      { val++; return *this; }
      FormattedDouble& operator--()
      { val--; return *this; }
      FormattedDouble operator--(int)
      { val--; return *this; }
 
      FormattedDouble& operator=(const FormattedDouble& right) = default;
 
      FormattedDouble& operator=(double d)
      { val = d; return *this; }
 
      FormattedDouble& operator=(const std::string& s);
 
      void dump(std::ostream& s) const;
 
      double val;                     
      StringUtils::FFLead leadChar;   
      unsigned mantissaLen;           
      unsigned exponentLen;           
      unsigned totalLen;              
      char exponentChar;              
      StringUtils::FFSign leadSign;   
      StringUtils::FFAlign alignment; 
   }; // class FormattedDouble
 
 
   std::ostream& operator<<(std::ostream& s, const FormattedDouble& d);
   std::istream& operator>>(std::istream& s, FormattedDouble& d);
 
 
   FormattedDouble :: operator std::string()
   {
      std::ostringstream s;
      s << *this;
      return s.str();
   }
 
   FormattedDouble FormattedDouble :: operator/(double d) const
   {
      FormattedDouble rv(*this);
      rv.val /= d;
      return rv;
   }
 
   FormattedDouble FormattedDouble :: operator*(double d) const
   {
      FormattedDouble rv(*this);
      rv.val *= d;
      return rv;
   }
 
} // namespace gnsstk
 
#endif // FORMATTEDDOUBLE_HPP