(j3.2006) ASSOCIATE and DO CONCURRENT LOCAL

[Bill Long]

A question came up about ASSOCIATE interacting with OpenMP, but the same concept applies to the new DO CONCURRENT enhancements.   Suppose you have

A = 1
ASSOCIATE ( B => A )

   DO CONCURRENT (i=1:1)  LOCAL (B) 
 
        X = A   ! B is undefined - does that cause A to be undefined as well?
        B = 2   ! Does this cause A to change value?

   END DO

END ASSOCIATE 

print *, A, X
end

Are there words in the standard to cover this interaction?

Cheers,
Bill
      

Bill Long                                                                       longb at cray.com
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