/*
 * Copyright (c) 1995, 1996 Gunther Schadow.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef PG_NMTYP_H_
#define PG_NMTYP_H_

#include <pg_config.h>

#pragma interface

#include <Primtype.h>

/*
 *  DATA TYPE
 *
 *      NM() -- numeric value
 */
class NMtyp : public Primtype
{
 public:

  NMtyp();
  NMtyp(int);
  NMtyp(long);
  NMtyp(unsigned int);
  NMtyp(double, int prec = 6);
  NMtyp(const char *);

  result input(istream&);
  void   output(ostream&) const;

  operator int()   const;
  operator long()   const;
  operator unsigned int()   const;
  operator double() const;
  operator class STtyp () const;
  operator class IDtyp () const;
  
  bool isfloat();
  bool isint();

  const NMtyp& operator = (int);
  const NMtyp& operator = (long);
  const NMtyp& operator = (unsigned int);
  const NMtyp& operator = (double);
  const NMtyp& operator = (const char *);

  bool operator == (const NMtyp&) const;
  bool operator != (const NMtyp&) const;
  bool operator <  (const NMtyp&) const;
  bool operator >  (const NMtyp&) const;
  bool operator <= (const NMtyp&) const;
  bool operator >= (const NMtyp&) const;

  bool operator == (int) const;
  bool operator != (int) const;
  bool operator <  (int) const;
  bool operator >  (int) const;
  bool operator <= (int) const;
  bool operator >= (int) const;

  bool operator == (unsigned int) const;
  bool operator != (unsigned int) const;
  bool operator <  (unsigned int) const;
  bool operator >  (unsigned int) const;
  bool operator <= (unsigned int) const;
  bool operator >= (unsigned int) const;

  bool operator == (long) const;
  bool operator != (long) const;
  bool operator <  (long) const;
  bool operator >  (long) const;
  bool operator <= (long) const;
  bool operator >= (long) const;

  bool operator == (double) const;
  bool operator != (double) const;
  bool operator <  (double) const;
  bool operator >  (double) const;
  bool operator <= (double) const;
  bool operator >= (double) const;

  unsigned int getPrecision();
  void setPrecision(unsigned int);

 private:
  bool _is_float;

  union {
    long   _int;
    double _float;
  };

  unsigned int _precision; // number of significant digits
};

#ifndef OUTLINE
# include "NMtyp.icc"
#endif

#endif /* !PG_NMTYP_H_ */