casa6

#ifndef _ATM_PERCENT_H

#define _ATM_PERCENT_H

/*******************************************************************************

* ALMA - Atacama Large Millimiter Array

* (c) Instituto de Estructura de la Materia, 2009

*

* This library 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 2.1 of the License, or (at your option) any later version.

*

* This library 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 this library; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA

*

* "@(#) $Id: ATMPercent.h Exp $"

*

* who       when      what

* --------  --------  ----------------------------------------------

* pardo     2009-03-24  created

*/

​

#ifndef __cplusplus

#error "This is a C++ include file and cannot be used from plain C"

#endif

​

#include "ATMCommon.h"

#include <string>

​

​

​

ATM_NAMESPACE_BEGIN

​

/*! \brief Defines a class for quantities that may be expressed in percent.

 *

 *   This class is aimed at quantities that may be defined in percent. Default is proposed with no units

 *   (relative to one), and an alternative is considered for units in %.

 */

class Percent

{

public:

​

  enum Units {

    UnitPercent,

    NumPercentUnits

  };

​

  /** Default constructor */

  Percent();

  /** A full constructor: Amount in default units (relative to 1) */

  Percent(double percent);

  /** A full constructor: Amount + units. Valid units are: % */

  Percent(double percent, const std::string &units);

​

  Percent(double percent, Units units);

​

  ~Percent();

​