Add IsPayToWitnessPubkeyHash convenience function

Author: instagibbs

src/script/script.cpp

@@ -244,6 +244,13 @@ bool CScript::IsPayToPubkeyHash() const
             (*this)[23] == OP_EQUALVERIFY &&
             (*this)[24] == OP_CHECKSIG);
 }
+bool CScript::IsPayToWitnessPubkeyHash() const
+{
+    return (this->size() == 22 &&
+            (*this)[0] == 0x00 &&
+            (*this)[1] == 0x14);
+}
+
 // END ELEMENTS
 //
 

src/script/script.h

@@ -538,6 +538,7 @@ class CScript : public CScriptBase
     unsigned int GetSigOpCount(const CScript& scriptSig) const;
 
     bool IsPayToPubkeyHash() const;
+    bool IsPayToWitnessPubkeyHash() const;
     bool IsPayToScriptHash() const;
     bool IsPayToWitnessScriptHash() const;
     bool IsWitnessProgram(int& version, std::vector<unsigned char>& program) const;