[Bug libstdc++/119899] Custom invoke has name collision with std::invoke, without using namespace std

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119899

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And https://gcc.gnu.org/bugs/#nonbugs_cxx