Prevector type

src/script/script.cpp

@@ -205,9 +205,9 @@ bool CScript::IsPayToScriptHash() const
 {
     // Extra-fast test for pay-to-script-hash CScripts:
     return (this->size() == 23 &&
-            this->at(0) == OP_HASH160 &&
-            this->at(1) == 0x14 &&
-            this->at(22) == OP_EQUAL);
+            (*this)[0] == OP_HASH160 &&
+            (*this)[1] == 0x14 &&
+            (*this)[22] == OP_EQUAL);
 }
 
 bool CScript::IsPushOnly() const