just use boost::bind, like this boost::thread my_thread( boost::bind( &testing, this ) ); Also, you haven't defined the member function testing. Christian On 9/27/06, Monica Gretzer <mogr_progr@yahoo.se> wrote:
Hi,
I want to use boost::thread to create threads that are member functions within a class. In all the examples I have seen, the thread function is defined globally.
I explain it with code. The following test code works:
// code 1: example program that works ----------------------------------------------- #include <boost/thread/thread.hpp> #include <iostream> using namespace std;
void testing() { cout << "I'm a thread." << endl; }
int main(int argc, char* argv[]) { // start a new thread that calls the "testing" function boost::thread my_thread(&testing); // wait for the thread to finish my_thread.join();
return 0; }
// -------------------------------------------------------------------------------------------
Now, I want to create something like:
// code 2: thread created from member class (code yields compiler errors)
#include <boost/thread/thread.hpp> #include <iostream> using namespace std;
class TestThread { public: void testing(void); void CreateThread(void); };
void TestThread::CreateThread() { // start a new thread that calls the "testing" function boost::thread my_thread(&testing); // wait for the thread to finish my_thread.join(); }
int main(int argc, char* argv[]) { TestThread t; t.CreateThread();
return 0; }
When compiling the code above (code 2), I get the following compilation error: ISO C++ forbids taking the address of an unqualified or paranthesized non-static member function to form a pointer to member function. Say &TestThread::testing.
My question is: How do I create threads from within a C++ class member function?
Thanks a lot for your help.
/ Mogr _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users