Ambiguity error with function overloads

[Ulrich Brandstätter <ulien@…>]

The following code (relevant for a convenient thread-callback API) fails to compile with VC2010 due to a C2668 error:

typedef boost::function<void (int i)> fooCallback;
typedef boost::function<void (int i, int k)> barCallback;

void TestBF(fooCallback fc) {}
void TestBF(barCallback bc) {}
void MyFunc (int a, int b) {}

int main(int argc, char **argv) {

    TestBF (&MyFunc);
    return 0;
}

Without calling TestBF in main, everything is fine, there is no multiple definition error. A (most likely) related discussion thread can be found here: ​http://boost.2283326.n4.nabble.com/Boost-Function-detecting-ignored-arguments-td4631919.html.