[Bug c++/84699] discarded value expression of volatile class type shall materialize a temporary

[okannen at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84699

--- Comment #1 from Olivier Kannengieser <okannen at gmail dot com> ---
A link to an answer to a question on stack overflow that details what should
happen:

https://stackoverflow.com/a/29873914/5632316