commit 74f67ba3dcfd09209bed6265772d5fd9007ea605
author Jonathan Wakely <jwakely@redhat.com> Fri Sep 20 17:35:48 2024 +0100
committer Jonathan Wakely <redi@gcc.gnu.org> Mon Sep 23 14:30:42 2024 +0100
tree 64efe5c7622d4ab978cb3345622de1183125111a
parent 1be3e4e43839d313364ffa99012ada41b4fae8da

libstdc++: Document missing features for old std:string ABI [PR116777]

There are several features that are not supported when using the old
std::string ABI. It's possible that PR 81967 will get fixed, but the
missing C++20 features almost certainly won't be. Document this in the
manual.

libstdc++-v3/ChangeLog:

	PR libstdc++/116777
	* doc/xml/manual/using.xml: Document features that are not
	supported for the gcc4-compatible ABI.
	* doc/html/manual/using_dual_abi.html: Regenerate.

(cherry picked from commit 82309222300acf68e345b32155df21e1b876144e)