[cxx_status] Update -std= instructions for C++20.

We merged support for -std=c++20 to the Clang 10 branch, so -std=c++2a
is only needed in Clang 9 and earlier.
This commit is contained in:
Richard Smith 2020-02-20 11:40:09 -08:00
parent e4a9225f5d
commit 6d34a87bae

View file

@ -825,7 +825,7 @@ code. This issue is expected to be rectified soon.
ISO C++ 2020 Draft International Standard.
<p>You can use Clang in C++20 mode with the <code>-std=c++20</code> option
(use <code>-std=c++2a</code> in Clang 10 and earlier).</p>
(use <code>-std=c++2a</code> in Clang 9 and earlier).</p>
<details open>
<summary>List of features and minimum Clang version with support</summary>