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Conference turris::fortran

Title:	Digital Fortran
Notice:	Read notes 1.* for important information
Moderator:	QUARK::LIONEL

Created:	Thu Jun 01 1995
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1333
Total number of notes:	6734

1333.0. "CDD once more, note 1212 more questions" by PRSSOS::DEGAGE () Fri Jun 06 1997 06:31

	Hello,

When you read note 1212, the conclusion is : all records from CDD ( with or
whithout RDB records) are aligned like in CDD, that'is to say , are packed...
and even if you say FOR/ALIGN=RECORD=NATURAL , the DEC FORTRAN compiler does
not take care of it and maintains packed alignment .

Am I right or not ?

Further questions :
- one customer used to work with DEC FORTRAN 6.3-711 and said that with this old
  version, the choice was possible ( like CDD or not like CDD)
  now this customer uses version 7.1 of the compiler and no choice is possible
  anymore

  Is it true or not ?

- for other compilers ( like DEC C version 5.5 ), the choice is possible .
  Why not with DEC FORTRAN ?

Thanks for your answers.
This cutomer is very annoyed with this behaviour of DEC FORTRAN because
they have a big application with DEC COBOL, DEC FORMS, DEC C, ORACLE RDB...
involved and only DEC FORTRAN has got this "one-way" behaviour.

Marielle Degage   CSC France

T.R	Title	User	Personal Name	Date	Lines
1333.1	I think DF77AV v7.1 is correct	TLE::WHITLOCK	Stan Whitlock	`Fri Jun 06 1997 09:52`	18
	DF77AV v7.1 fixed the processing of CDD record definitions brought in by the DICTIONARY statement to obey whatever alignment property the record definition had been given inside CDD. That's what you want: if the definition in the CDD says the record is packed, then DF77 has to treat it as packed, even if the compilation has been done with /ALIGN=RECORD=NATURAL. Here's what the DF/AV v7.1 release notes say: o Let DICTIONARY definitions use their own /ALIGN setting (instead of forcing /ALIGN=RECORD=PACKED). Is that fix what your customer is complaining about? Do they want DF77 to pad the CDD record items to natural boundaries when the compilation is done /ALIGN=RECORD=NATURAL even if the CDD definition says the record is packed? The behavior in DF77AV v7.1 seems correct to me. /Stan
1333.2		WIBBIN::NOYCE	Pulling weeds, pickin' stones	`Fri Jun 06 1997 10:39`	8
	> they have a big application with DEC COBOL, DEC FORMS, DEC C, ORACLE RDB... The only way such an application can work is if all the products follow the same rules, and lay out the data the same way. CDD is the place where "the same way" is defined. Fortran was recently fixed to follow the rules. Are you saying all the other products can lay out the data differently from the way CDD specifies??