Alexei Alexandrov ha escrito:
JoaquÃn Mª López Muñoz <joaquin <at> tid.es> writes:
I could avoid these warnings in Boost.MultiIndex, but I'm not sure this is the right thing to do, as the problem is really Boost-wide and should be considered, IMHO, from a global point of view: any class using boost::noncopyable will make MSVC level 4 shout, try the following for instance:
The example you provided compiles without a warning with "cl -c -W4 test.cpp".
Ummm... it shows C4511 and C4512 in MSVC 6.5. Maybe MSVC 7.1 is smarter.
So the problem is somewhat more specific perhaps?
The problem is, one way or another, related to the noncopyable idiom (deriving from a class with private copy ctr and assignment operator.) Maybe the following, more convoluted snippet will MSVC 7.1 emit the warning: #include <boost/noncopyable.hpp> class bar:boost::noncopyable { }; template<typename T> class foo:bar { public: foo(int x=0); }; foo<int> f; Even it doesn't, my point remains that this is a problem likely to be distributed across the whole Boost codebase. And that it is IMHO a nonsense warning, since lacking automatically generated copy ctor and assignment operator cannot AFAICS lead to inadvertent errors. Joaquín M López Muñoz Telefónica, Inevstigación y Desarrollo