1997-05-20 18:21:34 +00:00
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/***********************************************************
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2000-06-30 23:50:40 +00:00
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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All rights reserved.
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See the file "Misc/COPYRIGHT" for information on usage and
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redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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1997-05-20 18:21:34 +00:00
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******************************************************************/
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1996-01-12 00:47:05 +00:00
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/* Complex object implementation */
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/* Borrows heavily from floatobject.c */
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1997-05-20 18:21:34 +00:00
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/* Submitted by Jim Hugunin */
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1996-01-12 00:47:05 +00:00
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#ifndef WITHOUT_COMPLEX
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1997-05-02 03:12:38 +00:00
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#include "Python.h"
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1996-01-12 00:47:05 +00:00
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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/* elementary operations on complex numbers */
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1996-07-21 02:31:35 +00:00
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static Py_complex c_1 = {1., 0.};
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1996-01-12 00:47:05 +00:00
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2000-07-09 04:36:04 +00:00
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Py_complex c_sum(Py_complex a, Py_complex b)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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r.real = a.real + b.real;
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r.imag = a.imag + b.imag;
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return r;
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}
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2000-07-09 04:36:04 +00:00
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Py_complex c_diff(Py_complex a, Py_complex b)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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r.real = a.real - b.real;
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r.imag = a.imag - b.imag;
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return r;
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}
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2000-07-09 04:36:04 +00:00
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Py_complex c_neg(Py_complex a)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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r.real = -a.real;
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r.imag = -a.imag;
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return r;
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}
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2000-07-09 04:36:04 +00:00
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Py_complex c_prod(Py_complex a, Py_complex b)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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r.real = a.real*b.real - a.imag*b.imag;
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r.imag = a.real*b.imag + a.imag*b.real;
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return r;
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}
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2000-07-09 04:36:04 +00:00
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Py_complex c_quot(Py_complex a, Py_complex b)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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double d = b.real*b.real + b.imag*b.imag;
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if (d == 0.)
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1997-05-20 18:21:34 +00:00
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errno = EDOM;
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1996-01-12 00:47:05 +00:00
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r.real = (a.real*b.real + a.imag*b.imag)/d;
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r.imag = (a.imag*b.real - a.real*b.imag)/d;
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return r;
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}
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2000-07-09 04:36:04 +00:00
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Py_complex c_pow(Py_complex a, Py_complex b)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex r;
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1996-01-12 00:47:05 +00:00
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double vabs,len,at,phase;
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if (b.real == 0. && b.imag == 0.) {
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r.real = 1.;
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r.imag = 0.;
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}
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else if (a.real == 0. && a.imag == 0.) {
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if (b.imag != 0. || b.real < 0.)
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1997-05-20 18:21:34 +00:00
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errno = ERANGE;
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1996-01-12 00:47:05 +00:00
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r.real = 0.;
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r.imag = 0.;
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}
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else {
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vabs = hypot(a.real,a.imag);
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len = pow(vabs,b.real);
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at = atan2(a.imag, a.real);
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phase = at*b.real;
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if (b.imag != 0.0) {
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len /= exp(at*b.imag);
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phase += b.imag*log(vabs);
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}
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r.real = len*cos(phase);
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r.imag = len*sin(phase);
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}
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return r;
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}
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2000-07-09 04:36:04 +00:00
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static Py_complex c_powu(Py_complex x, long n)
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1996-01-12 00:47:05 +00:00
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{
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1996-08-19 19:30:45 +00:00
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Py_complex r, p;
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1996-01-12 00:47:05 +00:00
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long mask = 1;
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1996-08-19 19:30:45 +00:00
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r = c_1;
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p = x;
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1996-01-12 00:47:05 +00:00
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while (mask > 0 && n >= mask) {
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if (n & mask)
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r = c_prod(r,p);
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mask <<= 1;
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p = c_prod(p,p);
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}
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return r;
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}
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2000-07-09 04:36:04 +00:00
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static Py_complex c_powi(Py_complex x, long n)
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1996-01-12 00:47:05 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex cn;
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1996-01-12 00:47:05 +00:00
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if (n > 100 || n < -100) {
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cn.real = (double) n;
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cn.imag = 0.;
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return c_pow(x,cn);
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}
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else if (n > 0)
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return c_powu(x,n);
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else
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return c_quot(c_1,c_powu(x,-n));
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}
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PyObject *
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2000-07-09 04:36:04 +00:00
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PyComplex_FromCComplex(Py_complex cval)
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1996-01-12 00:47:05 +00:00
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{
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2000-05-03 23:44:39 +00:00
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register PyComplexObject *op;
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/* PyObject_New is inlined */
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op = (PyComplexObject *) PyObject_MALLOC(sizeof(PyComplexObject));
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1996-01-12 00:47:05 +00:00
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if (op == NULL)
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1997-05-02 03:12:38 +00:00
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return PyErr_NoMemory();
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2000-05-03 23:44:39 +00:00
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PyObject_INIT(op, &PyComplex_Type);
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1996-01-12 00:47:05 +00:00
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op->cval = cval;
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1997-05-02 03:12:38 +00:00
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return (PyObject *) op;
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1996-01-12 00:47:05 +00:00
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}
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PyObject *
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2000-07-09 04:36:04 +00:00
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PyComplex_FromDoubles(double real, double imag)
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1996-08-19 19:30:45 +00:00
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{
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Py_complex c;
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c.real = real;
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c.imag = imag;
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return PyComplex_FromCComplex(c);
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1996-01-12 00:47:05 +00:00
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}
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double
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2000-07-09 04:36:04 +00:00
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PyComplex_RealAsDouble(PyObject *op)
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1996-08-19 19:30:45 +00:00
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{
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if (PyComplex_Check(op)) {
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return ((PyComplexObject *)op)->cval.real;
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2000-07-09 04:36:04 +00:00
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}
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else {
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1996-08-19 19:30:45 +00:00
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return PyFloat_AsDouble(op);
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}
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1996-01-12 00:47:05 +00:00
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}
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double
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2000-07-09 04:36:04 +00:00
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PyComplex_ImagAsDouble(PyObject *op)
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1996-08-19 19:30:45 +00:00
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{
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if (PyComplex_Check(op)) {
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return ((PyComplexObject *)op)->cval.imag;
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2000-07-09 04:36:04 +00:00
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}
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else {
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1996-08-19 19:30:45 +00:00
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return 0.0;
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}
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1996-01-12 00:47:05 +00:00
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}
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1996-07-21 02:31:35 +00:00
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Py_complex
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2000-07-09 04:36:04 +00:00
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PyComplex_AsCComplex(PyObject *op)
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1996-08-19 19:30:45 +00:00
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{
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1996-07-21 02:31:35 +00:00
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Py_complex cv;
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1996-01-12 01:21:14 +00:00
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if (PyComplex_Check(op)) {
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return ((PyComplexObject *)op)->cval;
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2000-07-09 04:36:04 +00:00
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}
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else {
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1996-01-12 01:21:14 +00:00
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cv.real = PyFloat_AsDouble(op);
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cv.imag = 0.;
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return cv;
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}
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}
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1996-01-12 00:47:05 +00:00
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static void
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2000-07-09 04:36:04 +00:00
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complex_dealloc(PyObject *op)
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1996-01-12 00:47:05 +00:00
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{
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2000-05-03 23:44:39 +00:00
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PyObject_DEL(op);
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1996-01-12 00:47:05 +00:00
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}
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1996-05-24 20:45:01 +00:00
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static void
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2000-07-09 04:36:04 +00:00
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complex_buf_repr(char *buf, PyComplexObject *v)
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1996-01-12 00:47:05 +00:00
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{
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if (v->cval.real == 0.)
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1996-01-25 16:21:31 +00:00
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sprintf(buf, "%.12gj", v->cval.imag);
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1996-01-12 00:47:05 +00:00
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else
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1996-01-25 16:21:31 +00:00
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sprintf(buf, "(%.12g%+.12gj)", v->cval.real, v->cval.imag);
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1996-01-12 00:47:05 +00:00
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}
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static int
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2000-07-09 04:36:04 +00:00
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complex_print(PyComplexObject *v, FILE *fp, int flags)
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/* flags -- not used but required by interface */
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1996-01-12 00:47:05 +00:00
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{
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char buf[100];
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complex_buf_repr(buf, v);
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fputs(buf, fp);
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return 0;
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}
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1997-05-02 03:12:38 +00:00
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static PyObject *
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2000-07-09 04:36:04 +00:00
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complex_repr(PyComplexObject *v)
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1996-01-12 00:47:05 +00:00
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{
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char buf[100];
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complex_buf_repr(buf, v);
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1997-05-02 03:12:38 +00:00
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return PyString_FromString(buf);
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1996-01-12 00:47:05 +00:00
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}
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static int
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2000-07-09 04:36:04 +00:00
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complex_compare(PyComplexObject *v, PyComplexObject *w)
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1996-01-12 00:47:05 +00:00
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{
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2000-07-09 04:36:04 +00:00
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/* Note: "greater" and "smaller" have no meaning for complex numbers,
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but Python requires that they be defined nevertheless. */
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1996-08-19 19:30:45 +00:00
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Py_complex i, j;
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i = v->cval;
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j = w->cval;
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1996-01-12 00:47:05 +00:00
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if (i.real == j.real && i.imag == j.imag)
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2000-07-09 04:36:04 +00:00
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return 0;
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1996-01-12 00:47:05 +00:00
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else if (i.real != j.real)
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2000-07-09 04:36:04 +00:00
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return (i.real < j.real) ? -1 : 1;
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1996-01-12 00:47:05 +00:00
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else
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2000-07-09 04:36:04 +00:00
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return (i.imag < j.imag) ? -1 : 1;
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1996-01-12 00:47:05 +00:00
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}
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static long
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2000-07-09 04:36:04 +00:00
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complex_hash(PyComplexObject *v)
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1996-01-12 00:47:05 +00:00
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{
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2000-08-15 03:34:48 +00:00
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long hashreal, hashimag, combined;
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hashreal = _Py_HashDouble(v->cval.real);
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if (hashreal == -1)
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return -1;
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hashimag = _Py_HashDouble(v->cval.imag);
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if (hashimag == -1)
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return -1;
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/* Note: if the imaginary part is 0, hashimag is 0 now,
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* so the following returns hashreal unchanged. This is
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* important because numbers of different types that
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* compare equal must have the same hash value, so that
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* hash(x + 0*j) must equal hash(x).
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*/
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combined = hashreal + 1000003 * hashimag;
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if (combined == -1)
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combined = -2;
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return combined;
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1996-01-12 00:47:05 +00:00
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}
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1997-05-02 03:12:38 +00:00
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static PyObject *
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2000-07-09 04:36:04 +00:00
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complex_add(PyComplexObject *v, PyComplexObject *w)
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1996-01-12 00:47:05 +00:00
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{
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1997-02-14 22:54:21 +00:00
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Py_complex result;
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PyFPE_START_PROTECT("complex_add", return 0)
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result = c_sum(v->cval,w->cval);
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1997-03-14 04:32:50 +00:00
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PyFPE_END_PROTECT(result)
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1997-05-02 03:12:38 +00:00
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return PyComplex_FromCComplex(result);
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1996-01-12 00:47:05 +00:00
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}
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1997-05-02 03:12:38 +00:00
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static PyObject *
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2000-07-09 04:36:04 +00:00
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complex_sub(PyComplexObject *v, PyComplexObject *w)
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1996-01-12 00:47:05 +00:00
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{
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1997-02-14 22:54:21 +00:00
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Py_complex result;
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PyFPE_START_PROTECT("complex_sub", return 0)
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result = c_diff(v->cval,w->cval);
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1997-03-14 04:32:50 +00:00
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PyFPE_END_PROTECT(result)
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1997-05-02 03:12:38 +00:00
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return PyComplex_FromCComplex(result);
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1996-01-12 00:47:05 +00:00
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}
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1997-05-02 03:12:38 +00:00
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static PyObject *
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2000-07-09 04:36:04 +00:00
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complex_mul(PyComplexObject *v, PyComplexObject *w)
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1996-01-12 00:47:05 +00:00
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{
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1997-02-14 22:54:21 +00:00
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Py_complex result;
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PyFPE_START_PROTECT("complex_mul", return 0)
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result = c_prod(v->cval,w->cval);
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1997-03-14 04:32:50 +00:00
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PyFPE_END_PROTECT(result)
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1997-05-02 03:12:38 +00:00
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return PyComplex_FromCComplex(result);
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1996-01-12 00:47:05 +00:00
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}
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1997-05-02 03:12:38 +00:00
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static PyObject *
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2000-07-09 04:36:04 +00:00
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complex_div(PyComplexObject *v, PyComplexObject *w)
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1996-01-12 00:47:05 +00:00
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{
|
1996-07-21 02:31:35 +00:00
|
|
|
Py_complex quot;
|
1997-02-14 22:54:21 +00:00
|
|
|
PyFPE_START_PROTECT("complex_div", return 0)
|
1997-05-20 18:21:34 +00:00
|
|
|
errno = 0;
|
1996-01-12 00:47:05 +00:00
|
|
|
quot = c_quot(v->cval,w->cval);
|
1997-03-14 04:32:50 +00:00
|
|
|
PyFPE_END_PROTECT(quot)
|
1997-05-20 18:21:34 +00:00
|
|
|
if (errno == EDOM) {
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_ZeroDivisionError, "complex division");
|
1996-01-12 00:47:05 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyComplex_FromCComplex(quot);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_remainder(PyComplexObject *v, PyComplexObject *w)
|
1996-09-11 13:55:55 +00:00
|
|
|
{
|
1996-09-12 20:56:18 +00:00
|
|
|
Py_complex div, mod;
|
1997-05-20 18:21:34 +00:00
|
|
|
errno = 0;
|
1996-09-12 20:56:18 +00:00
|
|
|
div = c_quot(v->cval,w->cval); /* The raw divisor value. */
|
1997-05-20 18:21:34 +00:00
|
|
|
if (errno == EDOM) {
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_ZeroDivisionError, "complex remainder");
|
1996-09-12 20:56:18 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
div.real = floor(div.real); /* Use the floor of the real part. */
|
|
|
|
div.imag = 0.0;
|
|
|
|
mod = c_diff(v->cval, c_prod(w->cval, div));
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyComplex_FromCComplex(mod);
|
1996-09-11 13:55:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_divmod(PyComplexObject *v, PyComplexObject *w)
|
1996-09-12 20:56:18 +00:00
|
|
|
{
|
|
|
|
Py_complex div, mod;
|
|
|
|
PyObject *d, *m, *z;
|
1997-05-20 18:21:34 +00:00
|
|
|
errno = 0;
|
1996-09-12 20:56:18 +00:00
|
|
|
div = c_quot(v->cval,w->cval); /* The raw divisor value. */
|
1997-05-20 18:21:34 +00:00
|
|
|
if (errno == EDOM) {
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_ZeroDivisionError, "complex divmod()");
|
1996-09-12 20:56:18 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
div.real = floor(div.real); /* Use the floor of the real part. */
|
|
|
|
div.imag = 0.0;
|
|
|
|
mod = c_diff(v->cval, c_prod(w->cval, div));
|
1997-05-02 03:12:38 +00:00
|
|
|
d = PyComplex_FromCComplex(div);
|
|
|
|
m = PyComplex_FromCComplex(mod);
|
|
|
|
z = Py_BuildValue("(OO)", d, m);
|
1996-09-12 20:56:18 +00:00
|
|
|
Py_XDECREF(d);
|
|
|
|
Py_XDECREF(m);
|
|
|
|
return z;
|
|
|
|
}
|
1996-01-12 00:47:05 +00:00
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_pow(PyComplexObject *v, PyObject *w, PyComplexObject *z)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1996-07-21 02:31:35 +00:00
|
|
|
Py_complex p;
|
|
|
|
Py_complex exponent;
|
1996-01-12 00:47:05 +00:00
|
|
|
long int_exponent;
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
if ((PyObject *)z!=Py_None) {
|
|
|
|
PyErr_SetString(PyExc_ValueError, "complex modulo");
|
1996-01-12 00:47:05 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
1997-02-14 22:54:21 +00:00
|
|
|
PyFPE_START_PROTECT("complex_pow", return 0)
|
1997-05-20 18:21:34 +00:00
|
|
|
errno = 0;
|
1997-05-02 03:12:38 +00:00
|
|
|
exponent = ((PyComplexObject*)w)->cval;
|
1996-01-12 00:47:05 +00:00
|
|
|
int_exponent = (long)exponent.real;
|
|
|
|
if (exponent.imag == 0. && exponent.real == int_exponent)
|
|
|
|
p = c_powi(v->cval,int_exponent);
|
|
|
|
else
|
|
|
|
p = c_pow(v->cval,exponent);
|
|
|
|
|
1997-03-14 04:32:50 +00:00
|
|
|
PyFPE_END_PROTECT(p)
|
1997-05-20 18:21:34 +00:00
|
|
|
if (errno == ERANGE) {
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_ValueError,
|
|
|
|
"0.0 to a negative or complex power");
|
1996-01-12 00:47:05 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyComplex_FromCComplex(p);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_neg(PyComplexObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1996-07-21 02:31:35 +00:00
|
|
|
Py_complex neg;
|
1996-01-12 00:47:05 +00:00
|
|
|
neg.real = -v->cval.real;
|
|
|
|
neg.imag = -v->cval.imag;
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyComplex_FromCComplex(neg);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_pos(PyComplexObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1997-05-02 03:12:38 +00:00
|
|
|
Py_INCREF(v);
|
|
|
|
return (PyObject *)v;
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_abs(PyComplexObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1997-02-14 22:54:21 +00:00
|
|
|
double result;
|
|
|
|
PyFPE_START_PROTECT("complex_abs", return 0)
|
|
|
|
result = hypot(v->cval.real,v->cval.imag);
|
1997-03-14 04:32:50 +00:00
|
|
|
PyFPE_END_PROTECT(result)
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyFloat_FromDouble(result);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_nonzero(PyComplexObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1999-01-25 19:42:19 +00:00
|
|
|
return v->cval.real != 0.0 || v->cval.imag != 0.0;
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_coerce(PyObject **pv, PyObject **pw)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1996-07-21 02:31:35 +00:00
|
|
|
Py_complex cval;
|
1996-01-12 00:47:05 +00:00
|
|
|
cval.imag = 0.;
|
1997-05-02 03:12:38 +00:00
|
|
|
if (PyInt_Check(*pw)) {
|
|
|
|
cval.real = (double)PyInt_AsLong(*pw);
|
|
|
|
*pw = PyComplex_FromCComplex(cval);
|
|
|
|
Py_INCREF(*pv);
|
1996-01-12 00:47:05 +00:00
|
|
|
return 0;
|
|
|
|
}
|
1997-05-02 03:12:38 +00:00
|
|
|
else if (PyLong_Check(*pw)) {
|
|
|
|
cval.real = PyLong_AsDouble(*pw);
|
|
|
|
*pw = PyComplex_FromCComplex(cval);
|
|
|
|
Py_INCREF(*pv);
|
1996-01-12 00:47:05 +00:00
|
|
|
return 0;
|
|
|
|
}
|
1997-05-02 03:12:38 +00:00
|
|
|
else if (PyFloat_Check(*pw)) {
|
|
|
|
cval.real = PyFloat_AsDouble(*pw);
|
|
|
|
*pw = PyComplex_FromCComplex(cval);
|
|
|
|
Py_INCREF(*pv);
|
1996-01-12 00:47:05 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return 1; /* Can't do it */
|
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_int(PyObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_TypeError,
|
1996-09-11 22:54:37 +00:00
|
|
|
"can't convert complex to int; use e.g. int(abs(z))");
|
|
|
|
return NULL;
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_long(PyObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_TypeError,
|
1996-09-11 22:54:37 +00:00
|
|
|
"can't convert complex to long; use e.g. long(abs(z))");
|
|
|
|
return NULL;
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_float(PyObject *v)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1997-05-02 03:12:38 +00:00
|
|
|
PyErr_SetString(PyExc_TypeError,
|
1996-09-11 22:54:37 +00:00
|
|
|
"can't convert complex to float; use e.g. abs(z)");
|
|
|
|
return NULL;
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_conjugate(PyObject *self, PyObject *args)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
1996-08-19 19:30:45 +00:00
|
|
|
Py_complex c;
|
2000-02-29 13:59:29 +00:00
|
|
|
if (!PyArg_ParseTuple(args, ":conjugate"))
|
1998-05-07 16:29:10 +00:00
|
|
|
return NULL;
|
1997-05-02 03:12:38 +00:00
|
|
|
c = ((PyComplexObject *)self)->cval;
|
1996-01-12 00:47:05 +00:00
|
|
|
c.imag = -c.imag;
|
1997-05-02 03:12:38 +00:00
|
|
|
return PyComplex_FromCComplex(c);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static PyMethodDef complex_methods[] = {
|
1998-05-07 16:29:10 +00:00
|
|
|
{"conjugate", complex_conjugate, 1},
|
1996-01-12 00:47:05 +00:00
|
|
|
{NULL, NULL} /* sentinel */
|
|
|
|
};
|
|
|
|
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyObject *
|
2000-07-09 04:36:04 +00:00
|
|
|
complex_getattr(PyComplexObject *self, char *name)
|
1996-01-12 00:47:05 +00:00
|
|
|
{
|
|
|
|
if (strcmp(name, "real") == 0)
|
1997-05-02 03:12:38 +00:00
|
|
|
return (PyObject *)PyFloat_FromDouble(self->cval.real);
|
1996-01-12 00:47:05 +00:00
|
|
|
else if (strcmp(name, "imag") == 0)
|
1997-05-02 03:12:38 +00:00
|
|
|
return (PyObject *)PyFloat_FromDouble(self->cval.imag);
|
1997-04-01 03:12:33 +00:00
|
|
|
else if (strcmp(name, "__members__") == 0)
|
1997-05-02 03:12:38 +00:00
|
|
|
return Py_BuildValue("[ss]", "imag", "real");
|
|
|
|
return Py_FindMethod(complex_methods, (PyObject *)self, name);
|
1996-01-12 00:47:05 +00:00
|
|
|
}
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
static PyNumberMethods complex_as_number = {
|
1996-01-12 00:47:05 +00:00
|
|
|
(binaryfunc)complex_add, /*nb_add*/
|
|
|
|
(binaryfunc)complex_sub, /*nb_subtract*/
|
|
|
|
(binaryfunc)complex_mul, /*nb_multiply*/
|
|
|
|
(binaryfunc)complex_div, /*nb_divide*/
|
1996-09-11 13:55:55 +00:00
|
|
|
(binaryfunc)complex_remainder, /*nb_remainder*/
|
|
|
|
(binaryfunc)complex_divmod, /*nb_divmod*/
|
1996-01-12 00:47:05 +00:00
|
|
|
(ternaryfunc)complex_pow, /*nb_power*/
|
|
|
|
(unaryfunc)complex_neg, /*nb_negative*/
|
|
|
|
(unaryfunc)complex_pos, /*nb_positive*/
|
|
|
|
(unaryfunc)complex_abs, /*nb_absolute*/
|
|
|
|
(inquiry)complex_nonzero, /*nb_nonzero*/
|
|
|
|
0, /*nb_invert*/
|
|
|
|
0, /*nb_lshift*/
|
|
|
|
0, /*nb_rshift*/
|
|
|
|
0, /*nb_and*/
|
|
|
|
0, /*nb_xor*/
|
|
|
|
0, /*nb_or*/
|
|
|
|
(coercion)complex_coerce, /*nb_coerce*/
|
|
|
|
(unaryfunc)complex_int, /*nb_int*/
|
|
|
|
(unaryfunc)complex_long, /*nb_long*/
|
|
|
|
(unaryfunc)complex_float, /*nb_float*/
|
|
|
|
0, /*nb_oct*/
|
|
|
|
0, /*nb_hex*/
|
|
|
|
};
|
|
|
|
|
1997-05-02 03:12:38 +00:00
|
|
|
PyTypeObject PyComplex_Type = {
|
|
|
|
PyObject_HEAD_INIT(&PyType_Type)
|
1996-01-12 00:47:05 +00:00
|
|
|
0,
|
|
|
|
"complex",
|
1997-05-02 03:12:38 +00:00
|
|
|
sizeof(PyComplexObject),
|
1996-01-12 00:47:05 +00:00
|
|
|
0,
|
|
|
|
(destructor)complex_dealloc, /*tp_dealloc*/
|
|
|
|
(printfunc)complex_print, /*tp_print*/
|
|
|
|
(getattrfunc)complex_getattr, /*tp_getattr*/
|
|
|
|
0, /*tp_setattr*/
|
|
|
|
(cmpfunc)complex_compare, /*tp_compare*/
|
|
|
|
(reprfunc)complex_repr, /*tp_repr*/
|
|
|
|
&complex_as_number, /*tp_as_number*/
|
|
|
|
0, /*tp_as_sequence*/
|
|
|
|
0, /*tp_as_mapping*/
|
|
|
|
(hashfunc)complex_hash, /*tp_hash*/
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|