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Wednesday, September 27 • 10:30am - 12:00pm
Meta: Thoughts on generative C++

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Two years ago, I started to focus on exploring ways that we might evolve the C++ language itself to make C++ programming both more powerful and simpler. The only way to accomplish both of those goals at the same time is by adding abstractions that let programmers directly express their intent—to elevate comments and documentation to testable code, and elevate coding patterns and idioms into compiler-checkable declarations. The work came up with several potential candidate features where judiciously adding some power to the language could simplify code dramatically, while staying true to C++'s core values of efficient abstraction, closeness to hardware, and the zero-overhead principle.

The first two potential candidate features from that work to be further developed and proposed for ISO C++ are the <=> unified comparison operator (minor) and what I've provisionally called "metaclasses" as a way to generatively write C++ types (major). This talk is about the latter, and includes design motivation, current progress, and some live online compiler demos using the prototype Clang-based compiler built by Andrew Sutton and hosted at godbolt.org.

Speakers
avatar for Herb Sutter

Herb Sutter

Software architect, Microsoft
Herb chairs the ISO C++ committee and is the primary author or co-author of a number of Standard C++ features, including nullptr, enum class, parallel algorithms, C++17 structured bindings, and the in-progress unified <=> comparison operator.


Wednesday September 27, 2017 10:30am - 12:00pm
Atanasoff Hall Meydenbauer Center
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