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The C and C++ Include Header Files

/usr/include/python3.12/floatobject.h


$ cat -n /usr/include/python3.12/floatobject.h

     1	
     2	/* Float object interface */
     3	
     4	/*
     5	PyFloatObject represents a (double precision) floating point number.
     6	*/
     7	
     8	#ifndef Py_FLOATOBJECT_H
     9	#define Py_FLOATOBJECT_H
    10	#ifdef __cplusplus
    11	extern "C" {
    12	#endif
    13	
    14	PyAPI_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	
    31	PyAPI_FUNC(double) PyFloat_GetMax(void);
    32	PyAPI_FUNC(double) PyFloat_GetMin(void);
    33	PyAPI_FUNC(PyObject*) PyFloat_GetInfo(void);
    34	
    35	/* Return Python float from string PyObject. */
    36	PyAPI_FUNC(PyObject*) PyFloat_FromString(PyObject*);
    37	
    38	/* Return Python float from C double. */
    39	PyAPI_FUNC(PyObject*) PyFloat_FromDouble(double);
    40	
    41	/* Extract C double from Python float.  The macro version trades safety for
    42	   speed. */
    43	PyAPI_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 */