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- /*
-
- Copyright (C) 1996 John W. Eaton
-
- This file is part of Octave.
-
- Octave 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, or (at your option) any
- later version.
-
- Octave 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 Octave; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
- #if !defined (octave_range_h)
- #define octave_range_h 1
-
- #if defined (__GNUG__)
- #pragma interface
- #endif
-
- #include <cstdlib>
-
- #include <string>
-
- class ostream;
-
- #include "Range.h"
-
- #include "lo-utils.h"
- #include "mx-base.h"
- #include "oct-alloc.h"
- #include "str-vec.h"
-
- #include "error.h"
- #include "mappers.h"
- #include "ov-base.h"
- #include "ov-typeinfo.h"
-
- class Octave_map;
- class octave_value_list;
-
- class tree_walker;
-
- // Range values.
-
- class
- octave_range : public octave_base_value
- {
- public:
-
- octave_range (void)
- : octave_base_value () { }
-
- octave_range (double base, double limit, double inc)
- : octave_base_value (), range (base, limit, inc)
- {
- if (range.nelem () < 0)
- ::error ("invalid range");
- }
-
- octave_range (const Range& r)
- : octave_base_value (), range (r)
- {
- if (range.nelem () < 0)
- ::error ("invalid range");
- }
-
- octave_range (const octave_range& r)
- : octave_base_value (), range (r.range) { }
-
- ~octave_range (void) { }
-
- octave_value *clone (void) { return new octave_range (*this); }
-
- void *operator new (size_t size)
- { return allocator.alloc (size); }
-
- void operator delete (void *p, size_t size)
- { allocator.free (p, size); }
-
- type_conv_fcn numeric_conversion_function (void) const;
-
- octave_value *try_narrowing_conversion (void);
-
- octave_value index (const octave_value_list& idx) const;
-
- idx_vector index_vector (void) const { return idx_vector (range); }
-
- int rows (void) const { return (columns () > 0); }
- int columns (void) const { return range.nelem (); }
-
- bool is_defined (void) const { return true; }
-
- bool is_range (void) const { return true; }
-
- // XXX DO ME XXX
- octave_value all (void) const;
- octave_value any (void) const;
-
- bool is_real_type (void) const { return true; }
-
- bool valid_as_scalar_index (void) const
- {
- return (range.nelem () == 1
- && ! xisnan (range.base ())
- && NINT (range.base ()) == 1);
- }
-
- bool valid_as_zero_index (void) const
- {
- return (range.nelem () == 1
- && ! xisnan (range.base ())
- && NINT (range.base ()) == 0);
- }
-
- // XXX DO ME XXX
- bool is_true (void) const;
-
- double double_value (bool) const;
-
- Matrix matrix_value (bool) const
- { return range.matrix_value (); }
-
- Complex complex_value (bool) const;
-
- ComplexMatrix complex_matrix_value (bool) const
- { return range.matrix_value (); }
-
- Range range_value (void) const { return range; }
-
- octave_value not (void) const;
-
- octave_value uminus (void) const { return octave_value (- range); }
-
- octave_value transpose (void) const;
-
- octave_value hermitian (void) const;
-
- octave_value convert_to_str (void) const;
-
- void print (ostream& os, bool pr_as_read_syntax = false);
-
- int type_id (void) const { return t_id; }
-
- string type_name (void) const { return t_name; }
-
- static int static_type_id (void) { return t_id; }
-
- static void register_type (void)
- { t_id = octave_value_typeinfo::register_type (t_name); }
-
- private:
-
- Range range;
-
- static octave_allocator allocator;
-
- // Type id of range objects, set by register_type ().
- static int t_id;
-
- // Type name of scalar objects, defined in ov-range.cc.
- static const string t_name;
- };
-
- #endif
-
- /*
- ;;; Local Variables: ***
- ;;; mode: C++ ***
- ;;; End: ***
- */
-