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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 Thu Aug 16 12:25:46 2007 bruno
**
** Copyright INRIA 2006
*/
#ifdef __STDC_VERSION__
# ifndef STDC
# define STDC
# endif
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#include "doubleComplex.h"
#ifndef STDC99
/*
** \function zreals
** \brief Return a Complex Real Part .
*/
double zreals(doubleComplex z) {
return z.real;
}
/*
** \function zimags
** \brief Return a Complex Imaginary Part .
*/
double zimags(doubleComplex z) {
return z.imag;
}
#else
/*
** \function zreals
** \brief Return a Complex Real Part .
*/
double zreals(doubleComplex z) {
return creal(z);
}
/*
** \function zimags
** \brief Return a Complex Imaginary Part .
*/
double zimags(doubleComplex z) {
return cimag(z);
}
#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 zisreals(doubleComplex z) {
if (zimags(z) == 0)
return true;
return false;
}
/*
** \function isimag
** \brief check if complex is pure imaginary .
*/
bool zisimags(doubleComplex z) {
if (zreals(z) == 0)
return true;
return false;
}
/*
** Operators
** {
*/
/*
** \function zadds
** \brief add 2 Complex numbers.
*/
doubleComplex zadds(doubleComplex z1, doubleComplex z2) {
#ifndef STDC99
return DoubleComplex(z1.real + z2.real, z1.imag + z2.imag);
#else
return z1 + z2;
#endif
}
/*
** \function zdiffs
** \brief diff 2 Complex numbers.
*/
doubleComplex zdiffs(doubleComplex z1, doubleComplex z2) {
#ifndef STDC99
return DoubleComplex(z1.real - z2.real, z1.imag - z2.imag);
#else
return z1 - z2;
#endif
}
/*
** \function ztimess
** \brief Multiply 2 Complex numbers.
*/
doubleComplex ztimess(doubleComplex z1, doubleComplex z2) {
#ifndef STDC99
return DoubleComplex(z1.real*z2.real - z1.imag*z2.imag,
z1.real*z2.imag + z2.real*z1.imag);
#else
return z1 * z2;
#endif
}
/*
** }
*/
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