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-rw-r--r--src/script.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/script.h b/src/script.h
index f5ed611548..842b8512eb 100644
--- a/src/script.h
+++ b/src/script.h
@@ -553,6 +553,13 @@ public:
return true;
}
+ // Returns whether the script is guaranteed to fail at execution,
+ // regardless of the initial stack. This allows outputs to be pruned
+ // instantly when entering the UTXO set.
+ bool IsUnspendable() const
+ {
+ return (size() > 0 && *begin() == OP_RETURN);
+ }
void SetDestination(const CTxDestination& address);
void SetMultisig(int nRequired, const std::vector<CPubKey>& keys);