From b6ca1620c712288268913dfb616fbd3d96c1fcf5 Mon Sep 17 00:00:00 2001
From: Robin Cornelius
Date: Sat, 9 Oct 2010 10:20:10 +0100
Subject: Fix some STL errors highlighted by MSVC debug

---
 linden/indra/llui/lllineeditor.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'linden/indra/llui')

diff --git a/linden/indra/llui/lllineeditor.cpp b/linden/indra/llui/lllineeditor.cpp
index e73b287..a3785e4 100644
--- a/linden/indra/llui/lllineeditor.cpp
+++ b/linden/indra/llui/lllineeditor.cpp
@@ -416,7 +416,16 @@ void LLLineEditor::setText(const LLStringExplicit &new_text)
 	setCursor(llmin((S32)mText.length(), getCursor()));
 
 	// Set current history line to end of history.
-	mCurrentHistoryLine = mLineHistory.end() - 1;
+	// RC Fix, its really not safe to just take 1 of the end itterator, if end==begin
+	// that leaves an invalid state upseting the secure STL checks
+	if(mLineHistory.empty())
+	{
+		mCurrentHistoryLine = mLineHistory.begin();
+	}
+	else
+	{
+		mCurrentHistoryLine = mLineHistory.end() - 1;
+	}
 
 	mPrevText = mText;
 }
-- 
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