Fix #14539

Author: ludviggunne

lib/checkother.cpp

@@ -2024,7 +2024,7 @@ void CheckOther::checkConstPointer()
             //     continue;
             if (!isConstPointerVariable(p, *mSettings))
                 continue;
-            if (p->typeStartToken() && p->typeStartToken()->isSimplifiedTypedef() && !(Token::simpleMatch(p->typeEndToken(), "*") && !p->typeEndToken()->isSimplifiedTypedef()))
+            if (p->typeStartToken() && p->typeStartToken()->isSimplifiedTypedefOrUsing() && !(Token::simpleMatch(p->typeEndToken(), "*") && !p->typeEndToken()->isSimplifiedTypedefOrUsing()))
                 continue;
             constVariableError(p, p->isArgument() ? p->scope()->function : nullptr);
         }

lib/token.h

@@ -655,6 +655,17 @@ class CPPCHECKLIB Token {
         setFlag(fIsSimplifiedTypedef, b);
     }
 
+    bool isSimplifiedUsing() const {
+        return getFlag(fIsSimplifiedUsing);
+    }
+    void isSimplifiedUsing(bool b) {
+        setFlag(fIsSimplifiedUsing, b);
+    }
+
+    bool isSimplifiedTypedefOrUsing() const {
+        return isSimplifiedTypedef() || isSimplifiedUsing();
+    }
+
     bool isIncompleteConstant() const {
         return getFlag(fIsIncompleteConstant);
     }
@@ -1509,6 +1520,7 @@ class CPPCHECKLIB Token {
         fIsInitComma            = (1ULL << 43), // Is this comma located inside some {..}. i.e: {1,2,3,4}
         fIsInitBracket          = (1ULL << 44), // Is this bracket used as a part of variable initialization i.e: int a{5}, b(2);
         fIsAnonymous            = (1ULL << 45), // Is this a token added for an unnamed member
+        fIsSimplifiedUsing      = (1ULL << 46),
     };
 
     enum : std::uint8_t {

lib/tokenize.cpp

@@ -2998,6 +2998,9 @@ bool Tokenizer::simplifyUsing()
         if (!usingEnd)
             continue;
 
+        for (Token *typeTok = start; typeTok != usingEnd; typeTok = typeTok->next())
+            typeTok->isSimplifiedUsing(true);
+
         // Move struct defined in using out of using.
         // using T = struct t { }; => struct t { }; using T = struct t;
         // fixme: this doesn't handle attributes