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v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 785261684e0e660dcdce48daf683cec541f4a8f2 authored by Tim Peters on 05 September 2001, 00:53:45 UTC, committed by Tim Peters on 05 September 2001, 00:53:45 UTC 
Return reasonable results for math.log(long) and math.log10(long) (we were
 
getting Infs, NaNs, or nonsense in 2.1 and before; in yesterday's CVS we
were getting OverflowError; but these functions always make good sense
for positive arguments, no matter how large).
1 parent 63c9453
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Tip revision: 785261684e0e660dcdce48daf683cec541f4a8f2 authored by Tim Peters on 05 September 2001, 00:53:45 UTC
Return reasonable results for math.log(long) and math.log10(long) (we were
Tip revision: 7852616
complexobject.h 
/* Complex number structure */

#ifndef COMPLEXOBJECT_H
#define COMPLEXOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    double real;
    double imag;
} Py_complex;

/* Operations on complex numbers from complexmodule.c */

#define c_sum _Py_c_sum
#define c_diff _Py_c_diff
#define c_neg _Py_c_neg
#define c_prod _Py_c_prod
#define c_quot _Py_c_quot
#define c_pow _Py_c_pow

extern DL_IMPORT(Py_complex) c_sum(Py_complex, Py_complex);
extern DL_IMPORT(Py_complex) c_diff(Py_complex, Py_complex);
extern DL_IMPORT(Py_complex) c_neg(Py_complex);
extern DL_IMPORT(Py_complex) c_prod(Py_complex, Py_complex);
extern DL_IMPORT(Py_complex) c_quot(Py_complex, Py_complex);
extern DL_IMPORT(Py_complex) c_pow(Py_complex, Py_complex);


/* Complex object interface */

/*
PyComplexObject represents a complex number with double-precision
real and imaginary parts.
*/

typedef struct {
    PyObject_HEAD
    Py_complex cval;
} PyComplexObject;     

extern DL_IMPORT(PyTypeObject) PyComplex_Type;

#define PyComplex_Check(op) PyObject_TypeCheck(op, &PyComplex_Type)

extern DL_IMPORT(PyObject *) PyComplex_FromCComplex(Py_complex);
extern DL_IMPORT(PyObject *) PyComplex_FromDoubles(double real, double imag);

extern DL_IMPORT(double) PyComplex_RealAsDouble(PyObject *op);
extern DL_IMPORT(double) PyComplex_ImagAsDouble(PyObject *op);
extern DL_IMPORT(Py_complex) PyComplex_AsCComplex(PyObject *op);

#ifdef __cplusplus
}
#endif
#endif /* !COMPLEXOBJECT_H */
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