https://stackoverflow.com › questions › 55501869

. struct RetrieveKey { template<typename T> typename T::first_type operator()(T keyValuePair) const { return keyValuePair.first; } }; The error is . "qualified name is not allowed". I imported only boost library.

https://stackoverflow.com › questions › 48255775

I am following one of Fleeps old tutorials from 2012. I have encountered a speedbump, this error: qualified name is not allowed in member declaration. I have tried changing the SDK, defining/declar...

https://learn.microsoft.com › en-us › cpp › error-messages › compiler-errors-2 › compiler-error...

Learn how to fix the C2838 error that occurs when a class, structure, or union uses a fully qualified name to redeclare a member of another class, structure, or union. See the sample code and the explanation of the error message.

https://learn.microsoft.com › en-us › cpp › error-messages › compiler-warnings › c4596

Learn how to fix this warning in C++, C, and Assembler by removing the qualification from the identifier. See an example of code that generates C4596 and how to resolve it.

https://learn.microsoft.com › en-us › cpp › error-messages › compiler-errors-2 › compiler-error...

Learn why a friend function cannot be defined using a qualified name inside a class, and how to fix the error C3060. See the sample code and the correct way to declare a friend function.

https://community.spiceworks.com › t › error-in-c-qualified-name-is-not-allowed › 906319

A user asks how to access a struct in a class using qualified name in C++. Other users reply with suggestions, code examples and explanations of the error message.

https://en.cppreference.com › w › cpp › language › qualified_lookup

Learn how to use the scope resolution operator :: to refer to class, namespace, or enumerator members in C++. See the rules and exceptions for qualified name lookup and examples of common errors and correct usage.

https://web.cs.dal.ca › ... › docs › cppreference › en › cpp › language › qualified_lookup.html

Learn how to use the scope resolution operator :: to access class, namespace, or global members in C++. See examples, rules, and exceptions for qualified name lookup.

https://github.com › microsoft › vscode-cpptools › issues › 5821

A user reports an error on a preprocessor macro that compiles OK in Visual Studio and Emscripten, but not in VSCode. The error message is "qualified name is not allowed" and the solution is to use the "forcedInclude" option in c_cpp_properties.json.

https://cplusplus.com › forum › general › 233933

A user asks for help with an error saying qualified name is not allowed @hash::NumberOfItemsIndex in a hash0 class. Other users suggest possible solutions, such as putting everything in one class or using a forward declaration of class hash0.