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/*
Copyright (C) 1994, 1995, 1996, 1997, 2000, 2002, 2004, 2005, 2006,
2007 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 3 of the License, 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, see
<http://www.gnu.org/licenses/>.
*/
#if !defined (octave_ComplexDET_h)
#define octave_ComplexDET_h 1
#include <iostream>
#include "oct-cmplx.h"
// FIXME -- we could use templates here; compare with dbleDET.h
class
OCTAVE_API
ComplexDET
{
friend class ComplexMatrix;
friend class SparseComplexMatrix;
public:
ComplexDET (void) : c2 (0), c10 (0), e2 (0), e10 (0), base2 (false) { }
ComplexDET (const ComplexDET& a)
: c2 (a.c2), c10 (a.c10), e2 (a.e2), e10 (a.e10), base2 (a.base2)
{ }
ComplexDET& operator = (const ComplexDET& a)
{
if (this != &a)
{
c2 = a.c2;
e2 = a.e2;
c10 = a.c10;
e10 = a.e10;
base2 = a.base2;
}
return *this;
}
bool value_will_overflow (void) const;
bool value_will_underflow (void) const;
// These two functions were originally defined in base 10, so we are
// preserving that interface here.
Complex coefficient (void) const { return coefficient10 (); }
int exponent (void) const { return exponent10 (); }
Complex coefficient10 (void) const { return c10; }
int exponent10 (void) const { return e10; }
Complex coefficient2 (void) const { return c2; }
int exponent2 (void) const { return e2; }
Complex value (void) const;
friend std::ostream& operator << (std::ostream& os, const ComplexDET& a);
private:
// Constructed this way, we assume base 2.
ComplexDET (const Complex& c, int e)
: c2 (c), c10 (0), e2 (e), e10 (0), base2 (true)
{
initialize10 ();
}
// Original interface had only this constructor and it was assumed
// to be base 10, so we are preserving that interface here.
ComplexDET (const Complex *d)
: c2 (0), c10 (d[0]), e2 (0), e10 (static_cast<int> (d[1].real ())),
base2 (false)
{
initialize2 ();
}
void initialize2 (void);
void initialize10 (void);
Complex c2;
Complex c10;
int e2;
int e10;
// TRUE means the original values were provided in base 2.
bool base2;
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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