[3.8] bpo-38600: Change the mark up of NULL in the C API documentation. (GH-16950) (GH-16999)
Replace all *NULL* with ``NULL``.
(cherry picked from commit 25fc088607c855060ed142296dc1bd0125fad1af)
diff --git a/Doc/c-api/capsule.rst b/Doc/c-api/capsule.rst
index 3c921bb..78e2114 100644
--- a/Doc/c-api/capsule.rst
+++ b/Doc/c-api/capsule.rst
@@ -40,15 +40,15 @@
.. c:function:: PyObject* PyCapsule_New(void *pointer, const char *name, PyCapsule_Destructor destructor)
Create a :c:type:`PyCapsule` encapsulating the *pointer*. The *pointer*
- argument may not be *NULL*.
+ argument may not be ``NULL``.
- On failure, set an exception and return *NULL*.
+ On failure, set an exception and return ``NULL``.
- The *name* string may either be *NULL* or a pointer to a valid C string. If
- non-*NULL*, this string must outlive the capsule. (Though it is permitted to
+ The *name* string may either be ``NULL`` or a pointer to a valid C string. If
+ non-``NULL``, this string must outlive the capsule. (Though it is permitted to
free it inside the *destructor*.)
- If the *destructor* argument is not *NULL*, it will be called with the
+ If the *destructor* argument is not ``NULL``, it will be called with the
capsule as its argument when it is destroyed.
If this capsule will be stored as an attribute of a module, the *name* should
@@ -59,20 +59,20 @@
.. c:function:: void* PyCapsule_GetPointer(PyObject *capsule, const char *name)
Retrieve the *pointer* stored in the capsule. On failure, set an exception
- and return *NULL*.
+ and return ``NULL``.
The *name* parameter must compare exactly to the name stored in the capsule.
- If the name stored in the capsule is *NULL*, the *name* passed in must also
- be *NULL*. Python uses the C function :c:func:`strcmp` to compare capsule
+ If the name stored in the capsule is ``NULL``, the *name* passed in must also
+ be ``NULL``. Python uses the C function :c:func:`strcmp` to compare capsule
names.
.. c:function:: PyCapsule_Destructor PyCapsule_GetDestructor(PyObject *capsule)
Return the current destructor stored in the capsule. On failure, set an
- exception and return *NULL*.
+ exception and return ``NULL``.
- It is legal for a capsule to have a *NULL* destructor. This makes a *NULL*
+ It is legal for a capsule to have a ``NULL`` destructor. This makes a ``NULL``
return code somewhat ambiguous; use :c:func:`PyCapsule_IsValid` or
:c:func:`PyErr_Occurred` to disambiguate.
@@ -80,9 +80,9 @@
.. c:function:: void* PyCapsule_GetContext(PyObject *capsule)
Return the current context stored in the capsule. On failure, set an
- exception and return *NULL*.
+ exception and return ``NULL``.
- It is legal for a capsule to have a *NULL* context. This makes a *NULL*
+ It is legal for a capsule to have a ``NULL`` context. This makes a ``NULL``
return code somewhat ambiguous; use :c:func:`PyCapsule_IsValid` or
:c:func:`PyErr_Occurred` to disambiguate.
@@ -90,9 +90,9 @@
.. c:function:: const char* PyCapsule_GetName(PyObject *capsule)
Return the current name stored in the capsule. On failure, set an exception
- and return *NULL*.
+ and return ``NULL``.
- It is legal for a capsule to have a *NULL* name. This makes a *NULL* return
+ It is legal for a capsule to have a ``NULL`` name. This makes a ``NULL`` return
code somewhat ambiguous; use :c:func:`PyCapsule_IsValid` or
:c:func:`PyErr_Occurred` to disambiguate.
@@ -107,13 +107,13 @@
import the module conventionally (using :c:func:`PyImport_ImportModule`).
Return the capsule's internal *pointer* on success. On failure, set an
- exception and return *NULL*.
+ exception and return ``NULL``.
.. c:function:: int PyCapsule_IsValid(PyObject *capsule, const char *name)
Determines whether or not *capsule* is a valid capsule. A valid capsule is
- non-*NULL*, passes :c:func:`PyCapsule_CheckExact`, has a non-*NULL* pointer
+ non-``NULL``, passes :c:func:`PyCapsule_CheckExact`, has a non-``NULL`` pointer
stored in it, and its internal name matches the *name* parameter. (See
:c:func:`PyCapsule_GetPointer` for information on how capsule names are
compared.)
@@ -142,9 +142,9 @@
.. c:function:: int PyCapsule_SetName(PyObject *capsule, const char *name)
- Set the name inside *capsule* to *name*. If non-*NULL*, the name must
+ Set the name inside *capsule* to *name*. If non-``NULL``, the name must
outlive the capsule. If the previous *name* stored in the capsule was not
- *NULL*, no attempt is made to free it.
+ ``NULL``, no attempt is made to free it.
Return ``0`` on success. Return nonzero and set an exception on failure.
@@ -152,6 +152,6 @@
.. c:function:: int PyCapsule_SetPointer(PyObject *capsule, void *pointer)
Set the void pointer inside *capsule* to *pointer*. The pointer may not be
- *NULL*.
+ ``NULL``.
Return ``0`` on success. Return nonzero and set an exception on failure.