4 files changed, 9 insertions, 9 deletions
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 60f6f711e6..ab1dc4e681 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -160,9 +160,9 @@ protected:
 public:
     TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(NULL) {}
     TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData& txdataIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(&txdataIn) {}
-    bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const;
-    bool CheckLockTime(const CScriptNum& nLockTime) const;
-    bool CheckSequence(const CScriptNum& nSequence) const;
+    bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const override;
+    bool CheckLockTime(const CScriptNum& nLockTime) const override;
+    bool CheckSequence(const CScriptNum& nSequence) const override;
 };
 
 class MutableTransactionSignatureChecker : public TransactionSignatureChecker
diff --git a/src/script/sigcache.h b/src/script/sigcache.h
index 55cec4cc8d..5832b264b3 100644
--- a/src/script/sigcache.h
+++ b/src/script/sigcache.h
@@ -48,7 +48,7 @@ private:
 public:
     CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, bool storeIn, PrecomputedTransactionData& txdataIn) : TransactionSignatureChecker(txToIn, nInIn, amountIn, txdataIn), store(storeIn) {}
 
-    bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
+    bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const override;
 };
 
 void InitSignatureCache();
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index 4b01a6de94..ec93c5451b 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -393,7 +393,7 @@ class DummySignatureChecker : public BaseSignatureChecker
 public:
     DummySignatureChecker() {}
 
-    bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const
+    bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const override
     {
         return true;
     }
diff --git a/src/script/sign.h b/src/script/sign.h
index f3c0be4139..bd45862892 100644
--- a/src/script/sign.h
+++ b/src/script/sign.h
@@ -40,8 +40,8 @@ class TransactionSignatureCreator : public BaseSignatureCreator {
 
 public:
     TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn=SIGHASH_ALL);
-    const BaseSignatureChecker& Checker() const { return checker; }
-    bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const;
+    const BaseSignatureChecker& Checker() const override { return checker; }
+    bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override;
 };
 
 class MutableTransactionSignatureCreator : public TransactionSignatureCreator {
@@ -55,8 +55,8 @@ public:
 class DummySignatureCreator : public BaseSignatureCreator {
 public:
     DummySignatureCreator(const CKeyStore* keystoreIn) : BaseSignatureCreator(keystoreIn) {}
-    const BaseSignatureChecker& Checker() const;
-    bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const;
+    const BaseSignatureChecker& Checker() const override;
+    bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override;
 };
 
 struct SignatureData {