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diffhelpers: harden testhunk stable
authorMatt Mackall <mpm@selenic.com>
Sat, 12 May 2012 10:02:47 +0200
branchstable
changeset 16651 9e40bc4c1bde
parent 16650 fcb97d9a26cd
child 16652 2fdd1902ed2d
diffhelpers: harden testhunk
mercurial/diffhelpers.c file | annotate | diff | comparison | revisions 
--- a/mercurial/diffhelpers.c	Sat May 12 16:10:01 2012 +0900
+++ b/mercurial/diffhelpers.c	Sat May 12 10:02:47 2012 +0200
@@ -135,7 +135,7 @@
 		return NULL;
 	alen = PyList_Size(a);
 	blen = PyList_Size(b);
-	if (alen > blen - bstart) {
+	if (alen > blen - bstart || bstart < 0) {
 		return Py_BuildValue("l", -1);
 	}
 	for (i = 0; i < alen; i++) {
hg-stable