Having covered the basics of `auto` and rvalue references, there is a third big new C++ feature definitely worth knowing about: creating function objects on the fly with lambda expressions.
One of the more recent posts in my employer’s company blog is titled ‘What’s wrong with: “I don’t write any tests since I am not a tester”?’ – which made me think about the relation of developers to testing, and about the self-image of any developer who would say that sentence in earnest.
The last weeks I have been writing a lot about move semantics, move operations, rvalue references and forwarding references. While it might take a bit of getting used to all this, there’s good news.
Combining rvalue references with templated function parameters or `auto` behaves quite differently than “normal” rvalue references. Together with the utility function template `std::forward` they allow something called “perfect forwarding” and are therefore also called forwarding references.