From 1f80dac4c0f5b3e3b2106f7113b157c2e02b2da9 Mon Sep 17 00:00:00 2001
From: Aleric Inglewood <Aleric.Inglewood@gmail.com>
Date: Tue, 24 Dec 2013 19:33:17 +0100
Subject: [PATCH] Don't cause undefined behavior by calling
 std::vector<>::front() for empty container.

---
 indra/newview/llagentwearablesfetch.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/indra/newview/llagentwearablesfetch.cpp b/indra/newview/llagentwearablesfetch.cpp
index 3b48606a5..1dc9db79c 100644
--- a/indra/newview/llagentwearablesfetch.cpp
+++ b/indra/newview/llagentwearablesfetch.cpp
@@ -135,7 +135,15 @@ void LLInitialWearablesFetch::processContents()
 	LLInventoryModel::cat_array_t cat_array;
 	LLInventoryModel::item_array_t wearable_array;
 	LLFindWearables is_wearable;
-	llassert(mComplete.size() != 0);
+	// <singu temporary fix>
+	llassert(!mComplete.empty());
+	if (mComplete.empty())
+	{
+		// We can't call mComplete.front() in this case.
+		llwarns << "mComplete is empty." << llendl;
+	}
+	else
+	// </singu temporary fix>
 	gInventory.collectDescendentsIf(mComplete.front(), cat_array, wearable_array, 
 									LLInventoryModel::EXCLUDE_TRASH, is_wearable);