Floating Point Objects¶
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PyTypeObject
PyFloat_Type¶ This instance of
PyTypeObjectrepresents the Python floating point type. This is the same object asfloatin the Python layer.
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int
PyFloat_Check(PyObject *p)¶ Return true if its argument is a
PyFloatObjector a subtype ofPyFloatObject.
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int
PyFloat_CheckExact(PyObject *p)¶ Return true if its argument is a
PyFloatObject, but not a subtype ofPyFloatObject.
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PyObject*
PyFloat_FromString(PyObject *str)¶ - Return value: New reference.
Create a
PyFloatObjectobject based on the string value in str, orNULLon failure.
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PyObject*
PyFloat_FromDouble(double v)¶ - Return value: New reference.
Create a
PyFloatObjectobject from v, orNULLon failure.
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double
PyFloat_AsDouble(PyObject *pyfloat)¶ Return a C
doublerepresentation of the contents of pyfloat. If pyfloat is not a Python floating point object but has a__float__()method, this method will first be called to convert pyfloat into a float. If__float__()is not defined then it falls back to__index__(). This method returns-1.0upon failure, so one should callPyErr_Occurred()to check for errors.Changed in version 3.8: Use
__index__()if available.
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double
PyFloat_AS_DOUBLE(PyObject *pyfloat)¶ Return a C
doublerepresentation of the contents of pyfloat, but without error checking.
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PyObject*
PyFloat_GetInfo(void)¶ - Return value: New reference.
Return a structseq instance which contains information about the precision, minimum and maximum values of a float. It’s a thin wrapper around the header file
float.h.
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double
PyFloat_GetMax()¶ Return the maximum representable finite float DBL_MAX as C
double.
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double
PyFloat_GetMin()¶ Return the minimum normalized positive float DBL_MIN as C
double.
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int
PyFloat_ClearFreeList()¶ Clear the float free list. Return the number of items that could not be freed.
