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/* Copyright (C) 2006 Massachusetts Institute of Technology.
 * 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
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#define HARMINV_INT_H 1

#include "config.h"

#ifndef __cplusplus
/* Require C99 complex number support; this is just too painful
   without it.  Alternatively, use the complex<double> STL class in
   C++. */

#  include <complex.h>

#include "harminv.h"

typedef harminv_complex cmplx; /* shortcut */

/* define extended precision (long double) cmplxl type */
#if defined(HAVE_LONG_DOUBLE) && !defined(__cplusplus)
#  if defined(__cplusplus)
#  include <complex>
typedef std::complex<long double> cmplxl; /* problematic w/some C++ comp's */

#  elif defined(_Complex_I) && defined(complex) && defined(I)
/* C99 <complex.h> header was included before harminv.h */
typedef long double _Complex cmplxl;

#  endif
typedef cmplx cmplxl;

#ifdef __cplusplus
#  define I cmplx(0,1)
#  define creal(c) real(c)
#  define cimag(c) imag(c)
#  define cabs(c) abs(c)
#  define carg(c) arg(c)
#  define cexp(c) exp(c)
#  define csqrt(c) sqrt(c)
#  define clog(c) log(c)
#  ifndef HAVE_CARG  /* Cray doesn't have this for some reason */
#    define carg(c) atan2(cimag(c), creal(c))
#  endif

00066 struct harminv_data_struct {
     const cmplx *c;
     int n, K, J, nfreqs;
     double fmin, fmax;
     cmplx *z;
     cmplx *U0, *U1;
     cmplxl *G0, *G0_M, *D0; /* cached G, G_M, and D arrays for U0 */
     cmplx *B, *u;  /* eigen-solutions of U1*B = u*U0*B */
     cmplx *amps; /* mode amplitudes */
     double *errs; /* relative "error" estimates */

#endif /* HARMINV_INT_H */

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