https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101258
--- Comment #8 from Christopher Yeleighton <giecrilj at stegny dot 2a.pl> --- (In reply to Jonathan Wakely from comment #6) > While it would be nice if the libstdc++ API docs were 100% complete and > described every piece of the library, that is never going to happen. If you > are trying to use those docs to learn C++ you should stop, and look > elsewhere. I am trying to read somebody else’s code and that developer is using things that I would never use and I think should never make it to the standard in the first place. The ugliness of these things compares only with sbumpc. So I wanted to check whether this is a standard thing he used---and the reply from the API doc was negative. Thank you for making this problem a bit less painful.