C++ Lambda Story
Last updated on 2019-04-04
About the Book
This short book shows the story of lambda expressions. We'll start with C++03 and a motivation to have "ad-hoc" functors, and then we'll move into the latest C++ standards:
- C++11 - early days. You'll learn about all the elements of a lambda expression and even some tricks. This is the longest chapter as we need to cover a lot of topics.
- C++14 - updates. Once lambdas were adopted, we saw some options to improve them.
- C++17 - more improvements, especially by handling `this` pointer and allowing `constexpr`.
- C++20 - in this section we'll have a glimpse overview of the future.
The book contains updated versions of two articles that appeared at bfilipek.com:
I added more examples and better descriptions to describe lambdas in a better way!
The articles also are based on a live coding presentation given by C++ Expert Tomasz Kamiński at our local Cracow C++ User Group.
About the Author
Table of Contents
-
About the Book
- Who This Book is For
- Reader Feedback
- About the Author
- Acknowledgement
- Revision History
-
1. Lambdas in C++03
- Issues
- Motivation for a New Feature
-
2. Lambdas in C++11
- The Syntax
- The Type of a Lambda
- The Call Operator
- Captures
- Return Type
- IIFE - Immediately Invoked Function Expression
- Conversion to a Function Pointer
- Summary
-
3. Lambdas in C++14
- Default Parameters for Lambdas
- Return Type
- Captures With an Initializer
- Capturing a Member Variable
- Generic Lambdas
- Bonus - LIFTing with lambdas
- Summary
-
4. Lambdas in C++17
-
constexprLambda Expressions -
Capture of
*this - Summary
-
-
5. Future with C++20
- Quick Overview of the Changes
- Template Lambdas
- Summary
- References
- Notes
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