Yurttas/PL/SL/python/docs/core-python-programming/doc/16/api/intObjects.html

[[yurttas/PL/SL/python/docs/core-python-programming/doc/16/api/longObjects.html|]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/16/api/numericObjects.html|]]

Python/C API Reference Manual

[[yurttas/PL/SL/python/docs/core-python-programming/doc/16/api/contents.html|]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/16/api/genindex.html|]]

Next: 7.4.2 Long Integer Objects Up: 7.4 Numeric Objects Previous: 7.4 Numeric Objects

7.4.1 Plain Integer Objects

PyIntObject: This subtype of PyObject represents a Python integer object.

PyTypeObject PyInt_Type: This instance of PyTypeObject represents the Python plain integer type. This is the same object as types.IntType.

int PyInt_Check (PyObject* o): Return value: Borrowed reference.
Returns true if o is of type PyInt_Type.

PyObject* PyInt_FromLong (long ival): Return value: New reference.
Creates a new integer object with a value of ival. The current implementation keeps an array of integer objects for all integers between -1 and 100, when you create an int in that range you actually just get back a reference to the existing object. So it should be possible to change the value of 1. I suspect the behaviour of Python in this case is undefined. :-)

long PyInt_AsLong (PyObject *io): Will first attempt to cast the object to a PyIntObject, if it is not already one, and then return its value.