Overloading: The Bane of All Higher-Order Functions - Simon Brand [ CppCon 2018 ]

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Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2018
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Support for functional programming has been consistently growing in C++. Lambdas, new algorithms, variant visitation and std::apply are just a few of the many additions which make use of the paradigm more natural, expressive and powerful. Unfortunately, passing overloaded functions or function templates to higher-order functions is not as simple as it sounds, which forces users to adopt various unsatisfactory workarounds. This talk will discuss a few solutions, show how C++ still has a way to go in providing language support, and examine some existing standards proposals which could help.

Techniques discussed will include wrapping up overload sets in lambdas; maintaining noexcept specifications, return types, and brevity; global function objects; and avoiding subtle One Definition Rule (ODR) violations.
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Simon Brand, Microsoft
C++ Developer Advocate

Simon is a C++ Developer Advocate at Microsoft. He turns into a metaprogramming fiend every full moon, when he can be found bringing compilers to their knees with template errors and debating undefined behaviour online. He co-organises the Edinburgh C++ user group and contributes to various programming standards bodies.

Outside of programming, he enjoys experimental films, homebrewing, and board games.
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