Lambda Functions
Explore how to use lambda functions in C++ to write concise, unnamed functions that can capture local variables and maintain state. Understand the syntax, capturing mechanisms, and benefits of lambdas as function objects. Learn how C++14 generic lambdas work and how to design effective lambdas for practical programming.
We'll cover the following...
We'll cover the following...
A lambda function, or lambda, is a function without a name.
A lambda can be written in-place and doesn’t require complete implementation outside the scope of the main program.
A cool feature of lambdas is that they can be treated as data. Hence, they can be stored or copied in variables.
Syntax #
[]: Captures the used variables.(): Necessary for parameters.->: Necessary for complex lambda functions.{}: Function body, per defaultconst.[]() mutable -> {...}has a non-constant function body.
What exactly do we mean by capture?