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57 lines
1.3 KiB
ReStructuredText
57 lines
1.3 KiB
ReStructuredText
.. highlight:: c
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.. _boolobjects:
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Boolean Objects
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---------------
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Booleans in Python are implemented as a subclass of integers. There are only
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two booleans, :c:data:`Py_False` and :c:data:`Py_True`. As such, the normal
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creation and deletion functions don't apply to booleans. The following macros
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are available, however.
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.. c:var:: PyTypeObject PyBool_Type
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This instance of :c:type:`PyTypeObject` represents the Python boolean type; it
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is the same object as :class:`bool` in the Python layer.
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.. c:function:: int PyBool_Check(PyObject *o)
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Return true if *o* is of type :c:data:`PyBool_Type`. This function always
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succeeds.
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.. c:var:: PyObject* Py_False
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The Python ``False`` object. This object has no methods and is
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:term:`immortal`.
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.. versionchanged:: 3.12
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:c:data:`Py_False` is :term:`immortal`.
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.. c:var:: PyObject* Py_True
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The Python ``True`` object. This object has no methods and is
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:term:`immortal`.
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.. versionchanged:: 3.12
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:c:data:`Py_True` is :term:`immortal`.
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.. c:macro:: Py_RETURN_FALSE
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Return :c:data:`Py_False` from a function.
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.. c:macro:: Py_RETURN_TRUE
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Return :c:data:`Py_True` from a function.
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.. c:function:: PyObject* PyBool_FromLong(long v)
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Return :c:data:`Py_True` or :c:data:`Py_False`, depending on the truth value of *v*.
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