1
2/* Float object interface */
3
4/*
5PyFloatObject represents a (double precision) floating point number.
6*/
7
8#ifndef Py_FLOATOBJECT_H
9#define Py_FLOATOBJECT_H
10#ifdef __cplusplus
11extern "C" {
12#endif
13
14PyAPI_DATA(PyTypeObject) PyFloat_Type;
15
16#define PyFloat_Check(op) PyObject_TypeCheck(op, &PyFloat_Type)
17#define PyFloat_CheckExact(op) Py_IS_TYPE((op), &PyFloat_Type)
18
19#define Py_RETURN_NAN return PyFloat_FromDouble(Py_NAN)
20
21#define Py_RETURN_INF(sign) \
22 do { \
23 if (copysign(1., sign) == 1.) { \
24 return PyFloat_FromDouble(Py_HUGE_VAL); \
25 } \
26 else { \
27 return PyFloat_FromDouble(-Py_HUGE_VAL); \
28 } \
29 } while(0)
30
31PyAPI_FUNC(double) PyFloat_GetMax(void);
32PyAPI_FUNC(double) PyFloat_GetMin(void);
33PyAPI_FUNC(PyObject*) PyFloat_GetInfo(void);
34
35/* Return Python float from string PyObject. */
36PyAPI_FUNC(PyObject*) PyFloat_FromString(PyObject*);
37
38/* Return Python float from C double. */
39PyAPI_FUNC(PyObject*) PyFloat_FromDouble(double);
40
41/* Extract C double from Python float. The macro version trades safety for
42 speed. */
43PyAPI_FUNC(double) PyFloat_AsDouble(PyObject*);
44
45#ifndef Py_LIMITED_API
46# define Py_CPYTHON_FLOATOBJECT_H
47# include "cpython/floatobject.h"
48# undef Py_CPYTHON_FLOATOBJECT_H
49#endif
50
51#ifdef __cplusplus
52}
53#endif
54#endif /* !Py_FLOATOBJECT_H */
55

source code of include/python3.12/floatobject.h