diff -r e67b3a9bd2dc Doc/c-api/code.rst
--- a/Doc/c-api/code.rst	Sat Mar 03 02:38:37 2012 +0100
+++ b/Doc/c-api/code.rst	Sun Mar 11 08:29:11 2012 +0530
@@ -31,7 +31,7 @@
 
    Return true if *co* is a :class:`code` object
 
-.. c:function:: int PyCode_GetNumFree(PyObject *co)
+.. c:function:: int PyCode_GetNumFree(PyCodeObject *co)
 
    Return the number of free variables in *co*.
 
diff -r e67b3a9bd2dc Doc/c-api/codec.rst
--- a/Doc/c-api/codec.rst	Sat Mar 03 02:38:37 2012 +0100
+++ b/Doc/c-api/codec.rst	Sun Mar 11 08:29:11 2012 +0530
@@ -10,10 +10,7 @@
    As side effect, this tries to load the :mod:`encodings` package, if not yet
    done, to make sure that it is always first in the list of search functions.
 
-.. c:function:: int PyCodec_KnownEncoding(const char *encoding)
 
-   Return ``1`` or ``0`` depending on whether there is a registered codec for
-   the given *encoding*.
 
 .. c:function:: PyObject* PyCodec_Encode(PyObject *object, const char *encoding, const char *errors)
 
diff -r e67b3a9bd2dc Doc/c-api/type.rst
--- a/Doc/c-api/type.rst	Sat Mar 03 02:38:37 2012 +0100
+++ b/Doc/c-api/type.rst	Sun Mar 11 08:29:11 2012 +0530
@@ -51,13 +51,13 @@
    modification of the attributes or base classes of the type.
 
 
-.. c:function:: int PyType_HasFeature(PyObject *o, int feature)
+.. c:function:: int PyType_HasFeature(PyTypeObject *o, int feature)
 
    Return true if the type object *o* sets the feature *feature*.  Type features
    are denoted by single bit flags.
 
 
-.. c:function:: int PyType_IS_GC(PyObject *o)
+.. c:function:: int PyType_IS_GC(PyTypeObject *o)
 
    Return true if the type object includes support for the cycle detector; this
    tests the type flag :const:`Py_TPFLAGS_HAVE_GC`.
diff -r e67b3a9bd2dc Doc/c-api/unicode.rst
--- a/Doc/c-api/unicode.rst	Sat Mar 03 02:38:37 2012 +0100
+++ b/Doc/c-api/unicode.rst	Sun Mar 11 08:29:11 2012 +0530
@@ -1615,7 +1615,7 @@
    ISO-8859-1 if it contains non-ASCII characters".
 
 
-.. c:function:: int PyUnicode_RichCompare(PyObject *left,  PyObject *right,  int op)
+.. c:function:: PyObject* PyUnicode_RichCompare(PyObject *left,  PyObject *right,  int op)
 
    Rich compare two unicode strings and return one of the following: