[Bug middle-end/83239] False positive from -Wstringop-overflow on simple std::vector code

[TonyELewis at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83239

--- Comment #25 from Tony E Lewis <TonyELewis at hotmail dot com> ---
Yep - my original testcase now compiles without complaint on the trunk GCC on
Godbolt. Thanks very much to everyone involved.