在 2019/5/16 23:15, Michael Haubenwallner 写道: > Hi, > > it turns out that the std::bind template (since C++11) can be used > without the std:: namespace prefix ('ve tried 4.8.4, 8.3.0, 9.1.0). > > But why? > > That is, I fail to see how 'bind' can resolve to '::std::bind' > in this example, where one would expect a compilation failure: > See <https://en.cppreference.com/w/cpp/language/adl>. -- Best regards, LH_Mouse