Peter Dimov wrote:
boost::function<void(int)> f = boost::bind( DPC::Print1, &x, 2 ); t.async_wait( boost::bind( Component::Method1, &y, 10, f, &t ) ); or t.async_wait( boost::bind( Component::Method1, &y, 10, boost::protect(f), &t ) );
Your Component::Method1 takes two arguments, three with the implicit 'this':
class Component { public: template <typename Handler> void Method1 (int x ,Handler h) { x++; h(); } };
but you are passing four, there is one extra &t at the end.
Yes, you were right. I was passing not needed fifth parameter. But anyway this haven't changed error messages much. in both cases I am getting boost::bind errors ...expects 2 arguments - 4 provided ...expects 3 arguments - 4 provided ...expects 5 arguments - 4 provided ...expects 6 arguments - 4 provided ... Note: I'm not getting ... any error message for the 4 argument case, which is my case. t.async_wait( boost::bind( &Component::Method1, &y, 10, f ); t.async_wait( boost::bind( &Component::Method1, &y, 10, boost::protect(f) );
You should also use & with member functions, &Component::Method1, although some compilers allow you to omit it.
Jeff Flinn wrote:
The types above are incompatible, use what Peter suggested previously:
boost::function<void()> f = boost::bind( DPC::Print1, &x, 2 );
I tried this also - no effect whatsoever. Have you tried to compile my code ? Thank you in advance, Sergey