On Sun, 17 Jun 2018 at 23:01, NightStrike <nightstrike@xxxxxxxxx> wrote: > > I'm probably missing something abundantly obvious here, but shouldn't these > two methods of appending be the same according to > https://en.cppreference.com/w/cpp/filesystem/path/append variants 2 and 3? https://en.cppreference.com/w/cpp/filesystem/path/append#Parameters seems pretty clear about the allowed parameters of the (2) and (3) overloads. Neither of them can be called with a path object. > > #include <filesystem> > #include <string> > namespace fs = std::filesystem; > > void f() { > fs::path p; > p /= fs::path("s"); // works This works because it calls (1). > p.append(fs::path("s")); // doesn't This is neither a valid argument for the "source" parameter, nor a pair of iterators. > } > > It appears like clang doesn't support it, either. The downside here is > that it prevents being able to do the following: > > ifstream if { p.append(...).c_str() }; It's a lot simpler to just do: ifstream if{p/q};