Issue #28496: Mark up constants 0, 1 and -1 that denote return values or
special input values as literal text.
diff --git a/Doc/c-api/set.rst b/Doc/c-api/set.rst
index f6ebcf3..8bc1c8e 100644
--- a/Doc/c-api/set.rst
+++ b/Doc/c-api/set.rst
@@ -128,7 +128,7 @@
.. c:function:: int PySet_Contains(PyObject *anyset, PyObject *key)
- Return 1 if found, 0 if not found, and -1 if an error is encountered. Unlike
+ Return ``1`` if found, ``0`` if not found, and ``-1`` if an error is encountered. Unlike
the Python :meth:`__contains__` method, this function does not automatically
convert unhashable sets into temporary frozensets. Raise a :exc:`TypeError` if
the *key* is unhashable. Raise :exc:`PyExc_SystemError` if *anyset* is not a
@@ -138,7 +138,7 @@
.. c:function:: int PySet_Add(PyObject *set, PyObject *key)
Add *key* to a :class:`set` instance. Does not apply to :class:`frozenset`
- instances. Return 0 on success or -1 on failure. Raise a :exc:`TypeError` if
+ instances. Return ``0`` on success or ``-1`` on failure. Raise a :exc:`TypeError` if
the *key* is unhashable. Raise a :exc:`MemoryError` if there is no room to grow.
Raise a :exc:`SystemError` if *set* is not an instance of :class:`set` or its
subtype.
@@ -154,7 +154,7 @@
.. c:function:: int PySet_Discard(PyObject *set, PyObject *key)
- Return 1 if found and removed, 0 if not found (no action taken), and -1 if an
+ Return ``1`` if found and removed, ``0`` if not found (no action taken), and ``-1`` if an
error is encountered. Does not raise :exc:`KeyError` for missing keys. Raise a
:exc:`TypeError` if the *key* is unhashable. Unlike the Python :meth:`~set.discard`
method, this function does not automatically convert unhashable sets into