From 45a1c4c0885584554668c89bd6976474af01e2f5 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 11 Dec 2017 22:36:58 +0000
Subject: add empty container sanity checks when using front() and back()

---
 src/wallet/wallet2.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/wallet/wallet2.cpp')

diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 04c6ee236..88f9e0934 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -4950,6 +4950,7 @@ bool wallet2::tx_add_fake_output(std::vector<std::vector<tools::wallet2::get_out
   if (global_index == real_index) // don't re-add real one
     return false;
   auto item = std::make_tuple(global_index, tx_public_key, mask);
+  CHECK_AND_ASSERT_MES(!outs.empty(), false, "internal error: outs is empty");
   if (std::find(outs.back().begin(), outs.back().end(), item) != outs.back().end()) // don't add duplicates
     return false;
   outs.back().push_back(item);
-- 
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