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- /* complex/gsl_complex.h
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Gerard Jungman, Brian Gough
- *
- * 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 3 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
- * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- #ifndef __GSL_COMPLEX_H__
- #define __GSL_COMPLEX_H__
- #undef __BEGIN_DECLS
- #undef __END_DECLS
- #ifdef __cplusplus
- # define __BEGIN_DECLS extern "C" {
- # define __END_DECLS }
- #else
- # define __BEGIN_DECLS /* empty */
- # define __END_DECLS /* empty */
- #endif
- __BEGIN_DECLS
- /* two consecutive built-in types as a complex number */
- typedef double * gsl_complex_packed ;
- typedef float * gsl_complex_packed_float ;
- typedef long double * gsl_complex_packed_long_double ;
- typedef const double * gsl_const_complex_packed ;
- typedef const float * gsl_const_complex_packed_float ;
- typedef const long double * gsl_const_complex_packed_long_double ;
- /* 2N consecutive built-in types as N complex numbers */
- typedef double * gsl_complex_packed_array ;
- typedef float * gsl_complex_packed_array_float ;
- typedef long double * gsl_complex_packed_array_long_double ;
- typedef const double * gsl_const_complex_packed_array ;
- typedef const float * gsl_const_complex_packed_array_float ;
- typedef const long double * gsl_const_complex_packed_array_long_double ;
- /* Yes... this seems weird. Trust us. The point is just that
- sometimes you want to make it obvious that something is
- an output value. The fact that it lacks a 'const' may not
- be enough of a clue for people in some contexts.
- */
- typedef double * gsl_complex_packed_ptr ;
- typedef float * gsl_complex_packed_float_ptr ;
- typedef long double * gsl_complex_packed_long_double_ptr ;
- typedef const double * gsl_const_complex_packed_ptr ;
- typedef const float * gsl_const_complex_packed_float_ptr ;
- typedef const long double * gsl_const_complex_packed_long_double_ptr ;
- typedef struct
- {
- long double dat[2];
- }
- gsl_complex_long_double;
- typedef struct
- {
- double dat[2];
- }
- gsl_complex;
- typedef struct
- {
- float dat[2];
- }
- gsl_complex_float;
- #define GSL_REAL(z) ((z).dat[0])
- #define GSL_IMAG(z) ((z).dat[1])
- #define GSL_COMPLEX_P(zp) ((zp)->dat)
- #define GSL_COMPLEX_P_REAL(zp) ((zp)->dat[0])
- #define GSL_COMPLEX_P_IMAG(zp) ((zp)->dat[1])
- #define GSL_COMPLEX_EQ(z1,z2) (((z1).dat[0] == (z2).dat[0]) && ((z1).dat[1] == (z2).dat[1]))
- #define GSL_SET_COMPLEX(zp,x,y) do {(zp)->dat[0]=(x); (zp)->dat[1]=(y);} while(0)
- #define GSL_SET_REAL(zp,x) do {(zp)->dat[0]=(x);} while(0)
- #define GSL_SET_IMAG(zp,y) do {(zp)->dat[1]=(y);} while(0)
- #define GSL_SET_COMPLEX_PACKED(zp,n,x,y) do {*((zp)+2*(n))=(x); *((zp)+(2*(n)+1))=(y);} while(0)
- __END_DECLS
- #endif /* __GSL_COMPLEX_H__ */
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