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Talk:Undefined values: Difference between revisions
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(use consistent terminology if tasks are different in requirement rather than subject) |
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:Tangentially, if this task is to be distinct from [[Null]] by way of being "talk about this" rather than "do this specific thing" (which is IMO an excellent split to have; cf. [[Eval]] and [[Eval in environment]], created by me), then they should use the ''same terminology''. —[[User:Kevin Reid|Kevin Reid]] 03:24, 28 November 2009 (UTC)
:It is distinct from [[Null]], at least in the context of [[Ada]] and other [strongly typed] languages where null is a legal ''defined'' value, as opposed to an illegal ''undefined'' value. I presume that some other solutions are wrong in this sense, i.e. when ''defined'' = any value from the type's domain set. In a properly typed language an object may bot have an ''undefined'' value unless something was badly wrong. --[[User:Dmitry-kazakov|Dmitry-kazakov]] 15:53, 15 July 2010 (UTC)
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