C++ FunctionsLesson 30Free preview

C++ Lambda

This lesson is part of C++ · All levels

Summary

This lesson discusses lambda expression, an anonymous function that can be defined directly within an expression without the need for a separate declaration. Lambda is very practical for a short function that is only used once, for example as an algorithm argument. You study the parts of the lambda: capture, parameters, type, and body functions.

Key points

The basic shape of the lambda: [capture]
Capture determines the external variables that can be accessed within the lambda.
Lambda is often stored on a variable with the type auto.
Lambda without capture can be converted to a normal pointer function.

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