#6255: document PyInt_FromSize_t.
diff --git a/Doc/c-api/int.rst b/Doc/c-api/int.rst
index ef82100..9ff0347 100644
--- a/Doc/c-api/int.rst
+++ b/Doc/c-api/int.rst
@@ -68,6 +68,15 @@
.. cfunction:: PyObject* PyInt_FromSsize_t(Py_ssize_t ival)
+ Create a new integer object with a value of *ival*. If the value is larger
+ than ``LONG_MAX`` or smaller than ``LONG_MIN``, a long integer object is
+ returned.
+
+ .. versionadded:: 2.5
+
+
+.. cfunction:: PyObject* PyInt_FromSize_t(size_t ival)
+
Create a new integer object with a value of *ival*. If the value exceeds
``LONG_MAX``, a long integer object is returned.