VHDL Issue Number:      0128 
Classification:         Terminology, Grammar, and Typographical Errors
Language Version:       VHDL-87
Summary:                The definition of the term 'constraint' in the glossary 
                        refers to 'size constraints'.  These are no longer
                        defined by the language.  
Related Issues:         ?  
Relevant LRM Sections:  Appendix B 
Key Words and Phrases:  Constraint 
Current Status:         Submitted 
1076-1993 Disposition:  Superseded (ISAC Issues Outstanding)
Disposition Rationale:  N/A
Superseded By:          IR 1026
----------------------- 
Date Submitted:         1989/06/21 
Author of Submission:   Ken Scott 
Author's Affiliation:   Vantage Analysis Systems, Inc.  
Author's Post Address:  42840 Christy St., Suite 201 
                        Fremont, CA   94538 
Author's Phone Number:  (415) 659-0901 
Author's Fax Number:    
Author's Net Address:   N/A 
----------------------- 
Date Analyzed:          1991/03/21
Author of Analysis:     Oz Levia


Description of Problem 
---------------------- 
In appendix B (the glossary), the definition for the term 'Constraint'
includes a reference to a  'size constraint'.  There is no such BNF
production in the language, and it is not mentioned anywhere in
chapters 1 - 14.  It is probably an outdated term.  

Proposed Resolution 
------------------- 
Remove this reference to 'size constraints'.  

VASG-ISAC Analysis & Rationale 
------------------------------ 
Yes. The problem description is accurate.  


VASG-ISAC Recommendation for IEEE Std 1076-1987 
----------------------------------------------- 
Adopt the proposed resolution. The definition of constraint should read:  

A constraint defines a (not necessarily proper) subset of the values of 
a type.  There are index constraints, and range constraints.  


VASG-ISAC Recommendation for Future Revisions 
--------------------------------------------- 
None.