(j3.2006) derived types with type parameters are different

[Jim Xia]

j3-bounces at j3-fortran.org wrote on 07/25/2008 12:44:06 PM:

> 
> 
> Robert Corbett wrote:
> >
> > Are there any compilers that implement parameterized derived types
> > yet?
> 
> Yes, and I would expect that some that don't have at least gotten past 
> the design stage.  The feature is a pain to implement, so resistance to 
> doing it over a different way will be very high.

We're still implementing it.  As a general comment on public comment 
J32004 "F2008 too early": there is a call to review F2003 and address the 
reason for lack of implementations.  Aside from the size of F2003, there 
are also features not well designed.  Parameterized derived type is one of 
those falls into this category.


> > If so, how do they handle type equivalence?

At the moment our compiler handles N vs. N+0 case, and we reject N+N vs. 
N*N case.


Cheers


Jim Xia

RL Fortran Compiler Test
IBM Toronto Lab at 8200 Warden Ave, Markham, On, L6G 1C7
Phone (905) 413-3444  Tie-line 313-3444
email: jimxia at ca.ibm.com
D2/YF7/8200 /MKM
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