1 files changed, 2 insertions, 5 deletions
diff --git a/src/script/standard.cpp b/src/script/standard.cpp
index 760a5305e5..2aed393921 100644
--- a/src/script/standard.cpp
+++ b/src/script/standard.cpp
@@ -31,12 +31,9 @@ const char* GetTxnOutputType(txnouttype t)
     case TX_WITNESS_V0_KEYHASH: return "witness_v0_keyhash";
     case TX_WITNESS_V0_SCRIPTHASH: return "witness_v0_scripthash";
     }
-    return NULL;
+    return nullptr;
 }
 
-/**
- * Return public keys or hashes from scriptPubKey, for 'standard' transaction types.
- */
 bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet)
 {
     // Templates
@@ -253,7 +250,7 @@ class CScriptVisitor : public boost::static_visitor<bool>
 private:
     CScript *script;
 public:
-    CScriptVisitor(CScript *scriptin) { script = scriptin; }
+    explicit CScriptVisitor(CScript *scriptin) { script = scriptin; }
 
     bool operator()(const CNoDestination &dest) const {
         script->clear();