Aleksandar Donev wrote:

On Monday 28 April 2008 13:29, Bill Long wrote:

...

The problem is that the Fortran standard supports those semantics only for a Fortran pointer, not for a C pointer.

I will take the liberty to interpret the standard words "any pointer associated with the dummy shall become associated with the actual" to apply to C pointers as well. I don't think anyone (well, almost anyone) would interpret the Fortran standard's use of the well defined term "pointer" to include C pointers. However, I do agree that want you are saying makes operational sense. This seems like a candidate for an interp, since I don't see any words in the current standard to support this idea. Even with this fix, there is still the problem of the target attribute and all the other baggage that comes with pointers in Fortran.

Cheers, Bill

Otherwise TYPE(C_PTR) is useless. Of course one can modify the object it points to through the pointer, in C. What else is there? Maybe the standard is not super clear about it, but that's a different issue. I believe the intent has been that the C standard describes that, no need to repeat in the Fortran one. Best, Aleks

-- Bill Long [email protected] Fortran Technical Support & voice: 651-605-9024 Bioinformatics Software Development fax: 651-605-9142 Cray Inc., 1340 Mendota Heights Rd., Mendota Heights, MN, 55120