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-rw-r--r--Objects/stringlib/README.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Objects/stringlib/README.txt b/Objects/stringlib/README.txt
index 82a8774..aec3441 100644
--- a/Objects/stringlib/README.txt
+++ b/Objects/stringlib/README.txt
@@ -32,3 +32,12 @@ STRINGLIB_CHAR* STRINGLIB_STR(PyObject*)
returns the pointer to the character data for the given string
object (which must be of the right type)
+
+int STRINGLIB_CHECK_EXACT(PyObject *)
+
+ returns true if the object is an instance of our type, not a subclass.
+
+STRINGLIB_MUTABLE
+
+ Must be 0 or 1 to tell the cpp macros in stringlib code if the object
+ being operated on is mutable or not.