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ov-range.h
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C/C++ Source or Header
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1997-08-20
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181 lines
/*
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: ***
*/