From 50bbbaaae2842bff3beb6e3007bc661e4ddb55ed Mon Sep 17 00:00:00 2001
From: "dveditz@cruzio.com" <dveditz@cruzio.com>
Date: Thu, 28 Jun 2007 13:02:58 -0700
Subject: [PATCH] Bug 284219: add EnsureStringLength() helper function to
 nsReadableUtils.h to simplify OOM checks when growing an nsAString.
 r/sr=darin

---
 intl/unicharutil/util/nsBidiUtils.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/intl/unicharutil/util/nsBidiUtils.cpp b/intl/unicharutil/util/nsBidiUtils.cpp
index 6b4b6c552d1b..3ae68bf8b1ee 100644
--- a/intl/unicharutil/util/nsBidiUtils.cpp
+++ b/intl/unicharutil/util/nsBidiUtils.cpp
@@ -277,6 +277,8 @@ nsresult ArabicShaping(const PRUnichar* aString, PRUint32 aLen,
                        PRBool aInputLogical, PRBool aOutputLogical)
 {
   nsAutoString tempString(aString, aLen);
+  if (tempString.Length() != aLen)
+    return NS_ERROR_OUT_OF_MEMORY;
   PRUnichar *tempBuf = tempString.BeginWriting();
   if (aInputLogical) {
     ReverseString(tempBuf, aLen);