This is the mail archive of the egcs@egcs.cygnus.com mailing list for the EGCS project. See the EGCS home page for more information.
> On Feb 18, 1999, Paul Derbyshire <pderbysh@usa.net> wrote: > > > Q: Are STL containers guaranteed to be thread safe? At the risk of sounding like Bill Clinton or Bill Gates: it depends on what your definition of "thread safe" is. > No. You must lock them externally. However, it seems to me that the > SGI STL, distributed with egcs, provides some threading support, but > you'd have to check. You can read the details about what operations are thread-safe, and which are not, with SGI STL on http://www.sgi.com/Technology/STL/thread_safety.html The relevant paragraph is > The SGI implementation of STL is thread-safe only in the sense that > simultaneous accesses to distinct containers are safe, and simultaneous > read accesses to to shared containers are safe. If multiple threads access > a single container, and at least one thread may potentially write, then > the user is responsible for ensuring mutual exclusion between the threads > during the container accesses.