From 7e49c6eee88c72c53969da31db95a526742191ef Mon Sep 17 00:00:00 2001
From: Neal Norwitz <nnorwitz@gmail.com>
Date: Wed, 12 Jul 2006 05:27:46 +0000
Subject: Fix uninitialized memory read reported by Valgrind when running
 doctest. This could happen if size == 0.

---
 Objects/codeobject.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index a9bcb01..89871d6 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -556,6 +556,7 @@ PyCode_CheckLineNumber(PyCodeObject* co, int lasti, PyAddrPair *bounds)
            the line increments here, treating them as byte
            increments gets confusing, to say the least. */
 
+        bounds->ap_lower = 0;
         while (size > 0) {
                 if (addr + *p > lasti)
                         break;
-- 
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