-=> Quoting Craig Swanson to Jon Guthrie <=-

 > You didn't completely read what I wrote.  I wrote "semaphore or some
 > other mechanism" where some other mechanism could include atomic
 > instructions.

As Mr. Fitzsimmons points out, the operations in question aren't necessarily
atomic.  However, they will still work because it doesn't matter.

 > You should declare that thread_finished variable as volatile so that
 > the compiler will not optimize out the read of the memory location at
 > which the variable is stored. 

You are, of course, correct.  It doesn't help to have a flag variable that
isn't ever going to be tested.

--- Blue Wave/Max v2.12 OS/2 [NR]