mirror of
https://github.com/python/cpython.git
synced 2024-11-24 17:47:13 +01:00
1b2611eb02
Building Python now requires support for floating point Not-a-Number (NaN): remove the Py_NO_NAN macro.
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
|
|
/* Float object interface */
|
|
|
|
/*
|
|
PyFloatObject represents a (double precision) floating point number.
|
|
*/
|
|
|
|
#ifndef Py_FLOATOBJECT_H
|
|
#define Py_FLOATOBJECT_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
PyAPI_DATA(PyTypeObject) PyFloat_Type;
|
|
|
|
#define PyFloat_Check(op) PyObject_TypeCheck(op, &PyFloat_Type)
|
|
#define PyFloat_CheckExact(op) Py_IS_TYPE(op, &PyFloat_Type)
|
|
|
|
#define Py_RETURN_NAN return PyFloat_FromDouble(Py_NAN)
|
|
|
|
#define Py_RETURN_INF(sign) \
|
|
do { \
|
|
if (copysign(1., sign) == 1.) { \
|
|
return PyFloat_FromDouble(Py_HUGE_VAL); \
|
|
} \
|
|
else { \
|
|
return PyFloat_FromDouble(-Py_HUGE_VAL); \
|
|
} \
|
|
} while(0)
|
|
|
|
PyAPI_FUNC(double) PyFloat_GetMax(void);
|
|
PyAPI_FUNC(double) PyFloat_GetMin(void);
|
|
PyAPI_FUNC(PyObject*) PyFloat_GetInfo(void);
|
|
|
|
/* Return Python float from string PyObject. */
|
|
PyAPI_FUNC(PyObject*) PyFloat_FromString(PyObject*);
|
|
|
|
/* Return Python float from C double. */
|
|
PyAPI_FUNC(PyObject*) PyFloat_FromDouble(double);
|
|
|
|
/* Extract C double from Python float. The macro version trades safety for
|
|
speed. */
|
|
PyAPI_FUNC(double) PyFloat_AsDouble(PyObject*);
|
|
|
|
#ifndef Py_LIMITED_API
|
|
# define Py_CPYTHON_FLOATOBJECT_H
|
|
# include "cpython/floatobject.h"
|
|
# undef Py_CPYTHON_FLOATOBJECT_H
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_FLOATOBJECT_H */
|