root/test/manual/etags/cp-src/Range.h

     1 /*
     2 
     3 Copyright (C) 1996 John W. Eaton
     4 
     5 This file is part of Octave.
     6 
     7 Octave is free software; you can redistribute it and/or modify it
     8 under the terms of the GNU General Public License as published by the
     9 Free Software Foundation; either version 2, or (at your option) any
    10 later version.
    11 
    12 Octave is distributed in the hope that it will be useful, but WITHOUT
    13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    15 for more details.
    16 
    17 You should have received a copy of the GNU General Public License
    18 along with Octave; see the file COPYING.  If not, write to the Free
    19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    20 
    21 */
    22 
    23 #if !defined (octave_Range_h)
    24 #define octave_Range_h 1
    25 
    26 #if defined (__GNUG__)
    27 #pragma interface
    28 #endif
    29 
    30 class istream;
    31 class ostream;
    32 class Matrix;
    33 
    34 class
    35 Range
    36 {
    37  public:
    38 
    39   Range (void)
    40     : rng_base (-1), rng_limit (-1), rng_inc (-1), rng_nelem (-1) { }
    41 
    42   Range (const Range& r)
    43     : rng_base (r.rng_base), rng_limit (r.rng_limit), rng_inc (r.rng_inc),
    44       rng_nelem (r.rng_nelem) { }
    45 
    46   Range (double b, double l)
    47     : rng_base (b), rng_limit (l), rng_inc (1),
    48       rng_nelem (nelem_internal ()) { }
    49 
    50   Range (double b, double l, double i)
    51     : rng_base (b), rng_limit (l), rng_inc (i),
    52       rng_nelem (nelem_internal ()) { }
    53 
    54   double base (void) const { return rng_base;  }
    55   double limit (void) const { return rng_limit; }
    56   double inc (void) const { return rng_inc;   }
    57   int nelem (void) const { return rng_nelem; }
    58 
    59   bool all_elements_are_ints (void) const;
    60 
    61   Matrix matrix_value (void) const;
    62 
    63   double min (void) const;
    64   double max (void) const;
    65 
    66   void sort (void);
    67 
    68   void set_base (double b) { rng_base = b;  }
    69   void set_limit (double l) { rng_limit = l; }
    70   void set_inc (double i) { rng_inc = i;   }
    71 
    72   friend ostream& operator << (ostream& os, const Range& r);
    73   friend istream& operator >> (istream& is, Range& r);
    74 
    75   void print_range (void);
    76 
    77  private:
    78 
    79   double rng_base;
    80   double rng_limit;
    81   double rng_inc;
    82 
    83   int rng_nelem;
    84 
    85   int nelem_internal (void) const;
    86 };
    87 
    88 extern Range operator - (const Range& r);
    89 
    90 #endif
    91 
    92 /*
    93 ;;; Local Variables: ***
    94 ;;; mode: C++ ***
    95 ;;; End: ***
    96 */