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https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 512d2cc64328d06f4ff627497ab444e83e513348 authored by Raymond Hettinger on 25 January 2011, 21:32:39 UTC, committed by Raymond Hettinger on 25 January 2011, 21:32:39 UTC 
Issue #11004:  Repair edge case in deque.count().
 
(Reviewed by Georg Brandl.)

Also made similar changes to deque.reverse() though this wasn't
strictly necessary (the edge case cannot occur with two pointers
moving to meet in the middle).  Making the change in reverse()
was more a matter of future-proofing.
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Tip revision: 512d2cc64328d06f4ff627497ab444e83e513348 authored by Raymond Hettinger on 25 January 2011, 21:32:39 UTC
Issue #11004: Repair edge case in deque.count().
Tip revision: 512d2cc
complexobject.h 
/* Complex number structure */

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

#ifndef Py_LIMITED_API
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
#define c_abs _Py_c_abs

PyAPI_FUNC(Py_complex) c_sum(Py_complex, Py_complex);
PyAPI_FUNC(Py_complex) c_diff(Py_complex, Py_complex);
PyAPI_FUNC(Py_complex) c_neg(Py_complex);
PyAPI_FUNC(Py_complex) c_prod(Py_complex, Py_complex);
PyAPI_FUNC(Py_complex) c_quot(Py_complex, Py_complex);
PyAPI_FUNC(Py_complex) c_pow(Py_complex, Py_complex);
PyAPI_FUNC(double) c_abs(Py_complex);
#endif

/* Complex object interface */

/*
PyComplexObject represents a complex number with double-precision
real and imaginary parts.
*/
#ifndef Py_LIMITED_API
typedef struct {
    PyObject_HEAD
    Py_complex cval;
} PyComplexObject;
#endif

PyAPI_DATA(PyTypeObject) PyComplex_Type;

#define PyComplex_Check(op) PyObject_TypeCheck(op, &PyComplex_Type)
#define PyComplex_CheckExact(op) (Py_TYPE(op) == &PyComplex_Type)

#ifndef Py_LIMITED_API
PyAPI_FUNC(PyObject *) PyComplex_FromCComplex(Py_complex);
#endif
PyAPI_FUNC(PyObject *) PyComplex_FromDoubles(double real, double imag);

PyAPI_FUNC(double) PyComplex_RealAsDouble(PyObject *op);
PyAPI_FUNC(double) PyComplex_ImagAsDouble(PyObject *op);
#ifndef Py_LIMITED_API
PyAPI_FUNC(Py_complex) PyComplex_AsCComplex(PyObject *op);
#endif

/* Format the object based on the format_spec, as defined in PEP 3101
   (Advanced String Formatting). */
#ifndef Py_LIMITED_API
PyAPI_FUNC(PyObject *) _PyComplex_FormatAdvanced(PyObject *obj,
                                                 Py_UNICODE *format_spec,
                                                 Py_ssize_t format_spec_len);
#endif

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