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/*
** -*- C -*-
**
** doubleComplex.c
** Made by Bruno JOFRET <bruno.jofret@inria.fr>
**
** Started on Thu Nov 30 16:27:08 2006 jofret
** Last update Fri Feb 2 15:40:47 2007 jofret
**
** Copyright INRIA 2006
*/
#ifdef __STDC_VERSION__
# ifndef STDC
# define STDC
# endif
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#ifndef STDC99
#include "doubleComplex.h"
#else
#include "doubleComplexC99.h"
#endif
#ifndef STDC99
/*
** \function creal
** \brief Return a Complex Real Part .
*/
double creal(doubleComplex z) {
return z.real;
}
/*
** \function imag
** \brief Return a Complex Imaginary Part .
*/
double cimag(doubleComplex z) {
return z.imag;
}
#endif
/*
** \function DoubleComplex
** \brief construct a Double Complex .
*/
doubleComplex DoubleComplex(double real, double imag) {
doubleComplex z;
#ifndef STDC99
z.real = real;
z.imag = imag;
#else
z = real + I * imag;
#endif
return z;
}
/*
** \function isreal
** \brief check if complex is real .
*/
bool isreal(doubleComplex z) {
if (cimag(z) == 0)
return true;
return false;
}
/*
** \function isimag
** \brief check if complex is pure imaginary .
*/
bool isimag(doubleComplex z) {
if (creal(z) == 0)
return true;
return false;
}
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