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annotate Include/complexobject.h @ 3319:32b4e8adebeb legacy-trunk

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changes for complex numbers
author Guido van Rossum <guido@python.org>
date Fri, 12 Jan 1996 00:50:33 +0000
parents e5d1f242daf9
children 8ddda66dbf2c
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3316
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1 #ifndef COMPLEXOBJECT_H
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2 #define COMPLEXOBJECT_H
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3 #ifdef __cplusplus
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4 extern "C" {
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5 #endif
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6
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7 /* Complex number structure */
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8
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9 typedef struct {
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10 double real;
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11 double imag;
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12 } complex;
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13
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14 /* Operations on complex numbers from complexmodule.c */
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15
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16 extern complex c_sum();
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17 extern complex c_diff();
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18 extern complex c_neg();
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19 extern complex c_prod();
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20 extern complex c_quot();
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21 extern complex c_pow();
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22
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23
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24 /* Complex object interface */
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25
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26 /*
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27 PyComplexObject represents a complex number with double-precision
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28 real and imaginary parts.
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29 */
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30
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31 typedef struct {
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32 PyObject_HEAD
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33 complex cval;
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34 } PyComplexObject;
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35
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36 extern DL_IMPORT(PyTypeObject) PyComplex_Type;
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37
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38 #define PyComplex_Check(op) ((op)->ob_type == &PyComplex_Type)
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39
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40 extern PyObject *PyComplex_FromCComplex Py_PROTO((complex));
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41 extern PyObject *PyComplex_FromDoubles Py_PROTO((double real, double imag));
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42
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43 extern double PyComplex_RealAsDouble Py_PROTO((PyObject *op));
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44 extern double PyComplex_ImagAsDouble Py_PROTO((PyObject *op));
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45
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46 #ifdef __cplusplus
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47 }
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48 #endif
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49 #endif /* !COMPLEXOBJECT_H */