GCC 10 Adds Late Support For -std=c++20 To Target C++20

[carewolf]

I thought the difference between --std=c++1z and --std=c++17 was that the later meant the standard as specified, so full, and so with --std=c++2a and --std=c++20, it seems a bit early to accept the switch for the full standard with a few full features still missing (modules). Hopefully they won't bump the __cplusplus define, so that can be used instead having to look up the special define and number for every single feature you want to use.

[phoronix]

Phoronix: GCC 10 Adds Late Support For -std=c++20 To Target C++20

With C++20 now effectively complete, GCC developers have made a rather late change for GCC 10 that is also long overdue and that is introducing the -std=c++20 switch for targeting C++20...

http://www.phoronix.com/scan.php?pag...C-10-Std-CPP20