292 Explanation of r and w
Created: 14 Feb 2006
Status: In Force (green)
Part: Part 8-1 (2004)
Links:
Page: 18
Clause: 4
Paragraph:
Category: Issue for edition 2 of this part
Issue Clarify the characteristics of "r" and "w"
Proposal "r" means readable, but not necessarly read only
"w" means writeable, but not necessarly write only
| Discussion |
Created |
Status |
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31 Mar 06 |
In Force (green) |
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changed to final proposal
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24 Feb 06 |
Ballot Period |
The definitions of "r" and "w" can be found in clause 4. These will be clarified. Additionally, add "rw" definition.
"r = mandates that the item is readable. The ability to write the item is a local issue."
"rw"= Mandates that the item is both readable and writeable."
"w = Mandates that the item is writeable. The ability to read the item is a local issue."
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16 Feb 06 |
Discussion (red) |
The proposal does not consider different usages, i.e. the scope is not clear. The proposal's meaning is acceptable as a requirement from the standard, e.g.: "r" means, the considered data/attribute shall be readable, it may additionally be writeable.
In the context of a description of an implementation however, a 'may perhaps' is not allowed. Here an "r" means readable and nothing else, and if it is also writeable, then a "w" must be added additionally. This means that a standard formalism working with 'but may also' can not be used to describe an implementation (instance) of the standard.
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16 Feb 06 |
Discussion (red) |
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