C++ in Embedded Systems

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Writing Expressive Code with Lambdas

Lambda expressions in C++ allow us to write short blocks of code that encapsulate functionality and capture the surrounding state into a callable object. We can use operator() on a callable object to execute the functionality implemented in it.

Common uses of lambdas include passing a function object (also called a functor – an object of a class that overrides operator()) to standard library algorithms, or any code expecting a function object, encapsulating small blocks of code that are often used only in a single function, and variable initialization. Their ability to localize functionality without separate functions or class methods modernized C++, making it possible to write cleaner, more expressive ...