On Friday 25 January 2008 19:40, James Sutherland wrote:
Any thoughts on what could be causing this? I am using boost_1_34_0. I don¹t know if this is relevant, but I have a thread adaptor class that looks like:
class ThreadAdaptor { public: ThreadAdaptor( ExpressionBase& expr ) : expr_(expr) {} ThreadAdaptor(const ThreadAdaptor& ta) : expr_(ta.expr_) {} ~ThreadAdaptor(){} void operator()(){ expr_.evaluate(); } private: ThreadAdaptor& operator=(const ThreadAdaptor&); // no assignment ExpressionBase& expr_; };
If the "ExpressionBase" object is destroyed, that will also render this object unusable and crash any thread currently working on it, too, so you need to make sure that doesn't happen. Otherwise, can you provide a minimal compilable example? Lastly, your class above is superfluous: ExpressionBase x; boost::thread th( boost::bind( &ExpressionBase::evaluate, &x)); I.e. you use boost::bind to get a callable from a memberfunction. Note that passing 'x' into bind will also work but make a copy of it. You can prevent that using boost::ref() and boost::cref(). Uli