Hi all! I have a problem with the condition variable class. I wrote a sync object class (something which two threads have a reference to, the one is waiting on in in wait() the other will signal it with signal(). This is some pseudo code which illustrates my problem: function doSomething() { // the sync object is to keep this thread // waiting until the other one is done CPGSUSyncObject cSyncObject; // give a pointer of the sync object to another thread ... // at one time in the future the other thread will call // its signal routine which calls condition_variable::notify_all // wait until the other one has done its tasks cSyncObject.wait(); } My problem (as far as I can see it) is the following: condition_variable::notify_all() calls wake_waiters() but does further tasks after this call (I assume that wake_waiters() is doing the real signalling by the os?). But if I have the task switch fast enough, it may happen that my doSomething() method runs out of scope deleting cSyncObject which is itself deleting the condition_variable. So the vector iteration code in condition_variable::notify_all() crashes because the object is already destroyed... Any help or good hints are appreciated... Regards Dietmar