Migrate to Sphinx 1.0 C language constructs.
diff --git a/Doc/c-api/objbuffer.rst b/Doc/c-api/objbuffer.rst
index 728d383..e7f4fde 100644
--- a/Doc/c-api/objbuffer.rst
+++ b/Doc/c-api/objbuffer.rst
@@ -12,13 +12,13 @@
you control over the lifetime of the resources acquired when a buffer is
exported.
-Therefore, it is recommended that you call :cfunc:`PyObject_GetBuffer`
+Therefore, it is recommended that you call :c:func:`PyObject_GetBuffer`
(or the ``y*`` or ``w*`` :ref:`format codes <arg-parsing>` with the
-:cfunc:`PyArg_ParseTuple` family of functions) to get a buffer view over
-an object, and :cfunc:`PyBuffer_Release` when the buffer view can be released.
+:c:func:`PyArg_ParseTuple` family of functions) to get a buffer view over
+an object, and :c:func:`PyBuffer_Release` when the buffer view can be released.
-.. cfunction:: int PyObject_AsCharBuffer(PyObject *obj, const char **buffer, Py_ssize_t *buffer_len)
+.. c:function:: int PyObject_AsCharBuffer(PyObject *obj, const char **buffer, Py_ssize_t *buffer_len)
Returns a pointer to a read-only memory location usable as character-based
input. The *obj* argument must support the single-segment character buffer
@@ -27,7 +27,7 @@
:exc:`TypeError` on error.
-.. cfunction:: int PyObject_AsReadBuffer(PyObject *obj, const void **buffer, Py_ssize_t *buffer_len)
+.. c:function:: int PyObject_AsReadBuffer(PyObject *obj, const void **buffer, Py_ssize_t *buffer_len)
Returns a pointer to a read-only memory location containing arbitrary data.
The *obj* argument must support the single-segment readable buffer
@@ -36,13 +36,13 @@
:exc:`TypeError` on error.
-.. cfunction:: int PyObject_CheckReadBuffer(PyObject *o)
+.. c:function:: int PyObject_CheckReadBuffer(PyObject *o)
Returns ``1`` if *o* supports the single-segment readable buffer interface.
Otherwise returns ``0``.
-.. cfunction:: int PyObject_AsWriteBuffer(PyObject *obj, void **buffer, Py_ssize_t *buffer_len)
+.. c:function:: int PyObject_AsWriteBuffer(PyObject *obj, void **buffer, Py_ssize_t *buffer_len)
Returns a pointer to a writable memory location. The *obj* argument must
support the single-segment, character buffer interface. On success,