(j3.2006) (SC22WG5.4481) [ukfortran] Added atomic

N.M. Maclaren nmm1
Fri Jun 17 16:54:39 EDT 2011

On Jun 17 2011, Bill Long wrote:
>The list of comments on the coarray TR from Rice suggested adding a SWAP 
>atomic subroutine.    The list in 11-200 includes all of the "common" 
>atomic operations except one: atomic andxor. I'm inclined to add that 
>one, which would make SWAP unnecessary. Or we could add both.  For those 
>who are not big amo users...
>If this is added, is there a need for a separate atomic_swap?

Swapping works reliably and portably when one integer may be negative;
XOR doesn't.


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