Migrate to Sphinx 1.0 C language constructs.
diff --git a/Doc/c-api/iter.rst b/Doc/c-api/iter.rst
index ba7e9e3..3f0f554 100644
--- a/Doc/c-api/iter.rst
+++ b/Doc/c-api/iter.rst
@@ -7,12 +7,12 @@
There are only a couple of functions specifically for working with iterators.
-.. cfunction:: int PyIter_Check(PyObject *o)
+.. c:function:: int PyIter_Check(PyObject *o)
Return true if the object *o* supports the iterator protocol.
-.. cfunction:: PyObject* PyIter_Next(PyObject *o)
+.. c:function:: PyObject* PyIter_Next(PyObject *o)
Return the next value from the iteration *o*. If the object is an iterator,
this retrieves the next value from the iteration, and returns *NULL* with no