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

From: João Abecasis (jpabecasis_at_[hidden])
Date: 2006-02-14 19:03:58

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