C++20 Draft Approved As Major Update To C++ Programming Language

Written by Michael Larabel in Programming on 6 September 2020 at 08:38 AM EDT. 65 Comments
On Saturday the ISO/IEC 14882:2020 standards draft was approved as the latest major update to the C++ programming language.

The C++20 approval was unanimous and is a very significant update over C++17, coming a few months later than originally anticipated.

C++20 adds to the language concepts, modules, the "spaceship operator" for three-way comparisons, coroutines, designated initializers, new standard attributes, and much more. The C++20 library standard also adds ranges, feature test macros, bit operations, and more. C++20 changes in full can be found via the likes of cppreference.com, open-std.org, Wikipedia.

The C++ standards support for the GCC compiler show much of the C++20 language support is already in place if on GCC 10 while some features are already in GCC 8/9. Still to be finished is the C++ modules support as one of the last big ticket items. The GCC Wiki outlines the current in-progress modules work.

The Clang C++ status has much of the support already complete too. But they still have to finish up concepts, immediate functions, modules, and other features.
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