Exploring Ref Qualifiers in C++
Ref qualifiers in C++ are a feature introduced in C++11 that allow for more precise control over member function behavior based on value contexts. They enable developers to create specialized member functions that can be called in either lvalue or rvalue contexts, enhancing the language's flexibility. This article explores practical use cases for ref qualifiers, including fluent interfaces and builder patterns.
- ▪Ref qualifiers allow member functions to be specialized for lvalue and rvalue contexts.
- ▪They can be combined with =delete to prevent certain function calls in specific contexts.
- ▪An example of a logger class demonstrates how ref qualifiers can facilitate a fluent interface for configuration.
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Exploring ref qualifiers in C++ published at 21.05.2026 16:28 by Jens WellerSave to Instapaper Pocket Ref qualifiers are today an old C++11 feature, and recently I wanted to know more about them. Especially their potential use cases. Thats a particular point with this feature, I've seen examples - but often without a compelling use case. This feature is a great way to achieve very specific things in C++. You can add a kind of fine tuning with that to your member functions, creating specializations useful in an rvalue context.
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