[Bug libstdc++/118693] istream& getline (istream& is, string& str, char delim) does not return with long input

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118693

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Ah, I can reproduce the problem when the program reads from standard input and
pasting the text into the terminal. I think it's a shell problem, e.g. only
pasting 4kB characters.

Reading directly from a file shows that the std::istream code is working fine.