Hi Niels,
Adam and Peter, could you please also test the following on g++ 4.4.0?
the program compiles fine, which made me wonder about my earlier report that gcc 4.4.0 would choose boost::swap in the example program we previously talked about. So I tried to repeat my finding. I edited an std::cout << __PRETTY_FUNCTION__ << std::endl;" into <boost/utility/swap.hpp>, compiled the following program, and ran it: #include <iostream> #include <string> #include <boost/swap.hpp> int main(int, char * []) { std::string a1[42]; std::string a2[42]; boost::swap(a1, a2); // Okay. using boost::swap; swap(a1, a2); // Does not compile! return 0; } Surely enough, the output is g++ -pedantic test.cpp && ./a.out void boost::swap(T1&, T2&) [with T1 = std::string [42], T2 = std::string [42]] ..., just like last time but then I looked real hard at the source code and finally noticed that the program calls boost::swap() explicitly, too, which is where that debug output comes from. In other words, I was wrong: gcc 4.4.0 does *not* pick boost::swap by ADL in this example. I'm sorry for causing confusion. Take care, Peter