(j3.2006) STOP and PURE

[Bill Long]

C1598 says a PURE procedure shall not include an image control statement.  STOP is now covered by that constraint.

Cheers,
Bill

On Mar 27, 2017, at 4:54 PM, John Reid <John.Reid at stfc.ac.uk> wrote:

> In 12.7 of 14-007r1, we had this constraint:
> 
> C12101 A pure subprogram shall not contain a stop-stmt.
> 
> I can't see this in subsequent 007s. Was this a mistake? We still have, 
> in  NOTE 15.48 of 17-007:
> 
> "From the programmer?s point of view, these constraints can be 
> summarized as follows: ... nor shall a pure subprogram contain any 
> operation that could conceivably perform any external file input/output 
> or STOP operation."
> 
> And in the Introduction of of 17-007, we have:
> 
> "The ERROR STOP statement can appear in a pure subprogram."
> 
> with nothing comparable about STOP.
> 
> Cheers,
> 
> John.
> _______________________________________________
> J3 mailing list
> J3 at mailman.j3-fortran.org
> http://mailman.j3-fortran.org/mailman/listinfo/j3

Bill Long                                                                       longb at cray.com
Principal Engineer, Fortran Technical Support &   voice:  651-605-9024
Bioinformatics Software Development                      fax:  651-605-9143
Cray Inc./ 2131 Lindau Lane/  Suite 1000/  Bloomington, MN  55425