fix

Author: ludviggunne

lib/symboldatabase.cpp

@@ -7017,6 +7017,10 @@ void SymbolDatabase::setValueType(Token* tok, const ValueType& valuetype, const
                 setAutoTokenProperties(autoTok);
                 if (vt2->pointer > vt.pointer)
                     vt.pointer++;
+                if (Token::simpleMatch(autoTok->next(), "&"))
+                    vt.reference = Reference::LValue;
+                if (Token::simpleMatch(autoTok->next(), "&&"))
+                    vt.reference = Reference::RValue;
                 setValueType(var1Tok, vt);
                 if (var1Tok != parent->previous())
                     setValueType(parent->previous(), vt);
@@ -7291,15 +7295,42 @@ void SymbolDatabase::setValueType(Token* tok, const ValueType& valuetype, const
     }
 
     // c++17 auto type deduction of braced init list
-    if (parent->isCpp() && mSettings.standards.cpp >= Standards::CPP17 && vt2 && Token::Match(parent->tokAt(-2), "auto %var% {")) {
-        Token *autoTok = parent->tokAt(-2);
-        setValueType(autoTok, *vt2);
-        setAutoTokenProperties(autoTok);
-        if (parent->previous()->variable())
-            const_cast<Variable*>(parent->previous()->variable())->setValueType(*vt2);
-        else
-            debugMessage(parent->previous(), "debug", "Missing variable class for variable with varid");
-        return;
+    if (parent->isCpp() && mSettings.standards.cpp >= Standards::CPP17 && vt2) {
+        Token *autoTok = nullptr;
+        if (Token::Match(parent->tokAt(-2), "auto %var% {"))
+            autoTok = parent->tokAt(-2);
+        else if (Token::Match(parent->tokAt(-3), "auto &|&&|* %var% {"))
+            autoTok = parent->tokAt(-3);
+        if (autoTok) {
+            setValueType(autoTok, *vt2);
+            setAutoTokenProperties(autoTok);
+
+            Token *varTok = parent->astOperand1();
+            ValueType *varVt = new ValueType(*vt2);
+            for (Token *qualTok = autoTok->next(); qualTok != varTok; qualTok = qualTok->next()) {
+                if (Token::simpleMatch(qualTok, "&")) {
+                    varVt->reference = Reference::LValue;
+                    continue;
+                }
+                if (Token::simpleMatch(qualTok, "&&")) {
+                    varVt->reference = Reference::RValue;
+                    continue;
+                }
+                if (Token::simpleMatch(qualTok, "*")) {
+                    varVt->pointer++;
+                    continue;
+                }
+                break;
+            }
+
+            varTok->setValueType(varVt);
+
+            if (parent->previous()->variable())
+                const_cast<Variable*>(parent->previous()->variable())->setValueType(*varVt);
+            else
+                debugMessage(parent->previous(), "debug", "Missing variable class for variable with varid");
+            return;
+        }
     }
 
     if (!vt1)