From 91ca0b4065597b16b72a172f9f40993de588e026 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 29 Aug 2016 09:09:48 +0100
Subject: [PATCH] core: allow empty global indices for txes with empty vout

---
 src/cryptonote_core/blockchain.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index ef72dac5..07db5979 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -2149,7 +2149,12 @@ bool Blockchain::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<u
 
   // get amount output indexes, currently referred to in parts as "output global indices", but they are actually specific to amounts
   indexs = m_db->get_tx_amount_output_indices(tx_index);
-  CHECK_AND_ASSERT_MES(indexs.size(), false, "internal error: global indexes for transaction " << tx_id << " is empty");
+  if (indexs.empty())
+  {
+    // empty indexs is only valid if the vout is empty, which is legal but rare
+    cryptonote::transaction tx = m_db->get_tx(tx_id);
+    CHECK_AND_ASSERT_MES(tx.vout.empty(), false, "internal error: global indexes for transaction " << tx_id << " is empty, and tx vout is not");
+  }
 
   return true;
 }