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Higher-Order Functions and Function Ref

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Overview

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This talk explores practical uses of higher-order functions in modern C++, then examines the proposed C++20 `function_ref` abstraction, its implementation, and potential extensions. It compares `function_ref` with other techniques and discusses performance and API design.

Syllabus

Introduction
Outline
Highorder functions
Use cases
Parallel algorithms
Synchronicity
AI guards and higherorder functions
benchmarking a function
performance benefits
recap
template parameters
Why use functionref
Functionref synopsis
Use cases examples
Polymorphism
Sweeping
Construction

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