Subj : Re: Memory visibility with Pthreads
To   : comp.programming.threads
From : Alexander Terekhov
Date : Thu Aug 11 2005 11:46 am


David Schwartz wrote:
[...]
> > lock
> > B = 10;
> > unlock
> > A = 10;
[...]
> However, if the other thread does:
> 
> if(A==10)

it also triggers undefined behavior (in absence of synchronization 
regarding access to A's "memory location(s)" that ensures "that no 
thread of control can read or modify a memory location while another 
thread of control may be modifying it").

regards,
alexander.

.