https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100249
--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> --- (In reply to 康桓瑋 from comment #0) > So I think it should be relatively safe to inline all std::__invoke calls. I'm not sure we can inline these std::__invoke calls actually, because the standard has strict limits about the number of times these algorithms can apply the projection function, see https://eel.is/c++draft/alg.is.permutation#7 and https://eel.is/c++draft/alg.clamp#5. So if we e.g. inlined __proj_val in ranges::clamp, we'd be performing up to 4 projection applications instead of 3.
