From 1404c574037da331c233317618b9b90d3329ed33 Mon Sep 17 00:00:00 2001
From: Sjors Provoost <sjors@sprovoost.nl>
Date: Thu, 30 Jan 2020 19:28:54 +0100
Subject: [PATCH] [doc] Coin: explain that IsSpent() can also mean never
 existed

---
 src/coins.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/coins.h b/src/coins.h
index a3f34bb0ee..fadb1058cd 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -73,6 +73,9 @@ public:
         ::Unserialize(s, Using<TxOutCompression>(out));
     }
 
+    /** Either this coin never existed (see e.g. coinEmpty in coins.cpp), or it
+      * did exist and has been spent.
+      */
     bool IsSpent() const {
         return out.IsNull();
     }