Re: [Boost-users] Member function as a thread function

Marc Mutz wrote:

On Tuesday 14 February 2006 22:34, Steven Wooding wrote:

...

void MyClass::spawn_threads() { for ( int ii = 0; ii < num_threads; ++ii) { threadGroup.create_thread( boost::bind( ChildThreadFunc, _1, ii)); } }

void MyClass::ChildThreadFunc( int &threadNumber) { // Does some work }

C++ question. Use &MyClass::ChildThreadFunction as bind's first argument. You will probably also run into trouble with passing the int by reference (why?).

Because MyClass::ChildThreadFunc is run in a different thread, in a separate timeline, and when it runs the variable ii may no longer exist (?). That's my guess, anyway.

Pass it by value.

That does seem more appropriate. Regards, João