Re: ptr to function with param
Ulrich Eckhardt wrote:
Robster wrote:
void pollMode( Controller& ctrl );
[...]
Controller* ctrl = m_pCtrl.get();
void (*pPollMode) ( Controller&) = pollMode;
pPollMode( *ctrl ); // ok, this works.
// I want to pass ctrl to pollMode
// so I can do this ...
boost::thread thr( pPollMode ); // ooops
boost::thread takes a boost::function, which is in fact a wrapper for
something that can be called (function pointer, member function pointer,
object with overloaded operator()). In order to add arguments, use
boost::bind (In fact I'm surprised that this isn't mentioned in their
FAQ..)
Uli
Very nice. I now have:
void SomeClass::startPolling( ) {
// I want to pass ctrl to pollMode
Controller* ctrl = m_pCtrl.get();
boost::thread thr( boost::bind(pPollMode, *ctrl) );
}
I wish Boost were better documented. Thanks.
Rob
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