bpo-38600: Change the mark up of NULL in the C API documentation. (GH-16950)
Replace all *NULL* with ``NULL``.
diff --git a/Doc/c-api/function.rst b/Doc/c-api/function.rst
index 02c4ebd..a3cbf56 100644
--- a/Doc/c-api/function.rst
+++ b/Doc/c-api/function.rst
@@ -26,7 +26,7 @@
.. c:function:: int PyFunction_Check(PyObject *o)
Return true if *o* is a function object (has type :c:data:`PyFunction_Type`).
- The parameter must not be *NULL*.
+ The parameter must not be ``NULL``.
.. c:function:: PyObject* PyFunction_New(PyObject *code, PyObject *globals)
@@ -36,7 +36,7 @@
The function's docstring and name are retrieved from the code object. *__module__*
is retrieved from *globals*. The argument defaults, annotations and closure are
- set to *NULL*. *__qualname__* is set to the same value as the function's name.
+ set to ``NULL``. *__qualname__* is set to the same value as the function's name.
.. c:function:: PyObject* PyFunction_NewWithQualName(PyObject *code, PyObject *globals, PyObject *qualname)
@@ -69,7 +69,7 @@
.. c:function:: PyObject* PyFunction_GetDefaults(PyObject *op)
Return the argument default values of the function object *op*. This can be a
- tuple of arguments or *NULL*.
+ tuple of arguments or ``NULL``.
.. c:function:: int PyFunction_SetDefaults(PyObject *op, PyObject *defaults)
@@ -82,7 +82,7 @@
.. c:function:: PyObject* PyFunction_GetClosure(PyObject *op)
- Return the closure associated with the function object *op*. This can be *NULL*
+ Return the closure associated with the function object *op*. This can be ``NULL``
or a tuple of cell objects.
@@ -97,7 +97,7 @@
.. c:function:: PyObject *PyFunction_GetAnnotations(PyObject *op)
Return the annotations of the function object *op*. This can be a
- mutable dictionary or *NULL*.
+ mutable dictionary or ``NULL``.
.. c:function:: int PyFunction_SetAnnotations(PyObject *op, PyObject *annotations)