On 02/08/2012 10:38 AM, Andrew MacLeod wrote:
OSure. There are 2 benefits for c++ now
- We can compile atomic objects of any arbitrary size/type now.
Previously there was a compiler error if it was not an integer class
that mapped to a supported size of lock-free __sync call. Now a user
POD that is the same size as a supported integer will use the lock
free instructions.
- If there is not a lock free sequence it becomes a library call.
Although this release does not include an atomic library, I have made
a sample source file available on the wiki which can be compiled and
linked with code to resolve those library calls (using a locked
implementation) Its located in external library section of the wiki:
http://gcc.gnu.org/wiki/Atomic/GCCMM
Apparently thunderbird crashed *after* it sent my original email and I
didn't have to recompose it :-P
Andrew
