Jeff Garland - C++23 Standard Library Preview - Meeting C++ 2021

Jeff Garland provides an overview of the new features, containers, and ranges coming to the C++23 standard library.

Jeff Garland - C++23 Standard Library Preview - Meeting C++ 2021 Slides: slides.meetingcpp.com Survey: survey.meetingcpp.com Despite the pandemic the C++ committee is continuing to work towards C++23. This survey presentation provides students with a broad overview of the changes and new facilities in the C++23 standard library. The changes include a major expansion of ranges - including new view types like ~zip~ and algorithms like ~fold~ and ~starts_with~. For i/o there's a number of extensions to ~std::format~ facilities as well as a new i/o stream type, ~span_stream~ that allows for user supplied buffers in for i/o. In containers, we see the addition of ~flat_map~ and ~flat_set~. ~std::stacktrace~ provides a badly needed debugging capability. More ~constexpr~ library facilities include ~type_info~, ~std::variant~ and ~std::optional~. For interfaces with C there are changes for atomics and ~out_ptr~ to help with resource management. For functional programming monadic interfaces on ~optional~ are provided. Fast paced, and chock full of example codes, this tutorial will focus on practical application of the new c++23 standard library facilities. Some of these topics will be covered very briefly, but with pointers in the slides for further study. The tutorial is up to date with the latest working draft will include pointers to current implementations as well as the state of compiler support.