Avoid storing a reference passed to SignatureChecker constructors

Rebased-From: 9fddceda44fb5592be179d783f0e5ac616c51c0d
Github-Pull: #5719

1 files changed, 3 insertions, 3 deletions

diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 7bc919e9fd..83d44a9589 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -88,14 +88,14 @@ public:
 class TransactionSignatureChecker : public BaseSignatureChecker
 {
 private:
-    const CTransaction& txTo;
+    const CTransaction* txTo;
     unsigned int nIn;
 
 protected:
     virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
 
 public:
-    TransactionSignatureChecker(const CTransaction& txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
+    TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
     bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const;
 };
 
@@ -105,7 +105,7 @@ private:
     const CTransaction txTo;
 
 public:
-    MutableTransactionSignatureChecker(const CMutableTransaction& txToIn, unsigned int nInIn) : TransactionSignatureChecker(txTo, nInIn), txTo(txToIn) {}
+    MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn) : TransactionSignatureChecker(&txTo, nInIn), txTo(*txToIn) {}
 };
 
 bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL);