(j3.2006) (j3.2005) Re: elemental and BIND(C)

[Aleksandar Donev]

On Wednesday 22 November 2006 09:21, Bill Long wrote:

> Are we convinced there really is a problem
> calling an elemental subprogram from C?
This should not be allowed...and this coming from someone that wants BIND(C) 
internal, private module, etc. procs. There does not seem to be a plausible 
semantics here---unless the ELEMENTAL is really ignored and only a scalar 
entry point with a binding label is generated. One of the points of design of 
elementals is that compilers should be able to compile them into a set of 
procedures, one for each rank, which would be more efficient than calling the 
scalar version in an inner loop. I guess the compiler can generate those and 
use them on the Fortran side only.

In any case, specifying the meaning here requires some work and thought, so it 
is feature creep. In F2003 it should not be allowed, even if a corrigendum is 
needed to achieve that effect.

Aleks
P.S. Trying out the new list here