bpo-40204, doc: Fix syntax of C variables (GH-21846)
For example, fix the following Sphinx 3 errors:
Doc/c-api/buffer.rst:102: WARNING: Error in declarator or parameters
Invalid C declaration: Expected identifier in nested name. [error at 5]
void \*obj
-----^
Doc/c-api/arg.rst:130: WARNING: Unparseable C cross-reference: 'PyObject*'
Invalid C declaration: Expected end of definition. [error at 8]
PyObject*
--------^
The modified documentation is compatible with Sphinx 2 and Sphinx 3.
diff --git a/Doc/c-api/call.rst b/Doc/c-api/call.rst
index 0832e7e..31dc9c8 100644
--- a/Doc/c-api/call.rst
+++ b/Doc/c-api/call.rst
@@ -84,7 +84,7 @@
and they must be unique.
If there are no keyword arguments, then *kwnames* can instead be *NULL*.
-.. c:var:: PY_VECTORCALL_ARGUMENTS_OFFSET
+.. c:macro:: PY_VECTORCALL_ARGUMENTS_OFFSET
If this flag is set in a vectorcall *nargsf* argument, the callee is allowed
to temporarily change ``args[-1]``. In other words, *args* points to
@@ -283,7 +283,7 @@
This is the equivalent of the Python expression: ``callable(*args)``.
- Note that if you only pass :c:type:`PyObject \*` args,
+ Note that if you only pass :c:type:`PyObject *` args,
:c:func:`PyObject_CallFunctionObjArgs` is a faster alternative.
.. versionchanged:: 3.4
@@ -304,17 +304,17 @@
This is the equivalent of the Python expression:
``obj.name(arg1, arg2, ...)``.
- Note that if you only pass :c:type:`PyObject \*` args,
+ Note that if you only pass :c:type:`PyObject *` args,
:c:func:`PyObject_CallMethodObjArgs` is a faster alternative.
.. versionchanged:: 3.4
The types of *name* and *format* were changed from ``char *``.
-.. c:function:: PyObject* PyObject_CallFunctionObjArgs(PyObject *callable, ..., NULL)
+.. c:function:: PyObject* PyObject_CallFunctionObjArgs(PyObject *callable, ...)
Call a callable Python object *callable*, with a variable number of
- :c:type:`PyObject \*` arguments. The arguments are provided as a variable number
+ :c:type:`PyObject *` arguments. The arguments are provided as a variable number
of parameters followed by *NULL*.
Return the result of the call on success, or raise an exception and return
@@ -324,11 +324,11 @@
``callable(arg1, arg2, ...)``.
-.. c:function:: PyObject* PyObject_CallMethodObjArgs(PyObject *obj, PyObject *name, ..., NULL)
+.. c:function:: PyObject* PyObject_CallMethodObjArgs(PyObject *obj, PyObject *name, ...)
Call a method of the Python object *obj*, where the name of the method is given as a
Python string object in *name*. It is called with a variable number of
- :c:type:`PyObject \*` arguments. The arguments are provided as a variable number
+ :c:type:`PyObject *` arguments. The arguments are provided as a variable number
of parameters followed by *NULL*.
Return the result of the call on success, or raise an exception and return