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29253 討論

When are the REAL Fortran 2003 Capabilities to be Provided?

brianlamm
初學者
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It's been almost four years since the f2003 standard was officially adopted, yet Intel still lags far behind all other major Fortran compiler vendors in providing the new functionalities. NAG 5.1 is superior in that regard.

The f2003 implemented by IVF is, so far, miniscule at best.

Things like thefull capability of the ALLOCATE statement (new = typed and sourced allocation, IVF has neither); parameterized derived types; type extension; CLASS; abstract interfaces; procedure pointers; type-bound procedures; deferred attribute; nopass and pass attributes; IEEE 754 arithmetic exceptions, etc; the list ofuseful andpowerful f2003 capabilities not implemented by IVF goes on and on.

And Intel provides incorrect information for a f2003 featureIntel says is implemented: derived type components may be allocatable. That's incorrect and Intel should make it clearonly derived type components that are arrays may be declared allocatable, so that's yet another very useful f2003 thing Intel has not implemented: allocatable scalars, which is huge when one doesn't need the added functionality (and needless headaches) of using pointers.

So, when is Intel going to get earnest about implementinguseful f2003 capabilities?

Brian Lamm

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17 回應
Ron_Green
主席
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Brian,

I will try to contact you offline so we can discuss Fortran 2003 features. After our discussion I will post a reply for the rest of the group.

ron

brianlamm
初學者
2,168 檢視

Ron,

Sounds good to me. You should have my registered email address on file.

Thanks,

Brian

brianlamm
初學者
2,168 檢視

I would just like to add Ron called me and after the conversation was over I realized, once again, why I stick with Intel: the people behind and on the "scene".

Brian Lamm

jeanvezina
初學者
2,168 檢視

Any news about the Fortran 2003 implementation roadmap ?

When a fully compliant compiler will be available ? 2008 ? 2009 ? 2010 ?

The order of priority should be: Object Oriented features first, user-defined derived type

I/O last. The COM wizard and Module Wizard should be changed to use F2003 syntax.

Best regards,

Jean Vezina

P.S. The rather ironic thing about this is that the Fortran 2008 standardmay wellbecome official before complete Fortran 2003 compilersare even released.

Steven_L_Intel1
2,168 檢視
We can't offer a roadmap or timeframe. We are committed to fully supporting F2003, but that's all we can say. And yes, it is indeed likely that F2008 will be finalized before there are "mainstream" F2003 compilers available. That point is not lost on some on the standards committee.

I'd appreciate more detail on your suggestion about the COM and Module wizards. Care to give an example (in general terms)?
jeanvezina
初學者
2,168 檢視

Dear Steve,

Currently the Module Wizard generates a wrapper around COM,OLE, orActive X objects. Calling the generated routines is not as straighforward and convenient as it is in other languages such as Visual Basic or C#.

With Fortran 2003, a notation closer to the normal "object notation" could in principle be used.

For example: setting a property: object%property = ... instead of CALL AUTOSETPROPERTY.

Calling a method: call object%method(...) instead of calling a generated subroutine with awkward arguments.

Objectfinalization (destructors) is also now part of Fortran 2003. Currently, all the housekeeping has to be done by the programmer to avoid memory leaks. In Visual Basic, C++, and C#, this is done much more automatically.

Again, that depends on the long term view of Intel about Fortran. Does Intel sees it as a general application development language (Digital and after Compaq didsome good steps in that direction) or just a high performance computational tool where all the GUI and O/S interactions are handled by other languages, leaving the Fortran part just for calculations ?

Best regards,

Jean Vezina

jimdempseyatthecove
榮譽貢獻者 III
2,168 檢視

>> And yes, it is indeed likely that F2008 will be finalized before there are "mainstream" F2003 compilers available. That point is not lost on some on the standards committee.

Ahh, there's the problem... The standards committee is moving too fast ;)

Jim

Steven_L_Intel1
2,168 檢視
Jean,

Thanks for taking the time to give us your thoughts on this. I can't make any promises, but we'll certainly consider something along these lines.
djpinkster
初學者
2,168 檢視
Hi, it's been a while since the last post on this thread, and I'm wondering what the progress is on this topic in VF10.1. Looking at the "new features" list I see something on Fortran 2003 features but nothing on classes, inheritance or methods (/procedures) as part of types. Can't find anything in the IVF (10.0) help-files either. Has any of this been implemented, or is this on a release-schudule sometime this year?

From my point of view, if these features aren't in the language it's really difficult to lift my collection of Fortran (77/90) sources to the next level of (re)useability and maintainability so I'm really excited to hear what the plans are for IVF in this respect.

Regards, Dirk-Jan
abhimodak
新貢獻者 I
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I am hoping that Ron will inform us about "the minutes" of his discussion.....

Abhi
Steven_L_Intel1
2,168 檢視
Dirk-Jan, those features are not yet available as part of the product. They are under active development. I cannot predict when they will show up in "a compiler near you" and cannot discuss release schedules.

As I have stated before, we are committed to implementing the full Fortran 2003 language and that is the #1 priority for the development team.
djpinkster
初學者
2,168 檢視
Steve, thanks for the response, I'll keep my eyes and ears open for these features in IVF (which is the only compilear near me :-)
slsfortran
初學者
2,168 檢視

It hears as good news. I hope that intel will release a full Fortran 2003 complier at the end of the year 2008.

f2003
初學者
2,168 檢視
here I am.

:)
brianlamm
初學者
2,168 檢視
I think the last post is frivolous and should be deleted. I tried to report it as "abuse" to no avail.

Quite some time ago now, I was fully satisfied with Intel's personal response (Ron) the details of which are between Intel and me, so is there any way to delete this entire thread?

-Brian
Steven_L_Intel1
2,168 檢視
Brian, I think the thread provides useful information to the user community. As for the last post, yes it was frivolous but I thought it harmless.
gib
新貢獻者 II
2,168 檢視
"is there any way to delete this entire thread?"

You could try reporting it as abuse ;-)
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