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Talk:Stack: Difference between revisions
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== ... is this really a task? ==
Not sure whether this is the right place to bring this up, but is this really a task? I mean: nothing is being done here. If the intended task is "implement a stack" then the reference to objects already implies a particular type of implementation (one that precludes functional languages, for example). But if it is really about objects, then isn't the task here really just "instantiate something from your library"? [[User:Sgeier|Sgeier]] 00:43, 24 February 2007 (EST)
:I'm not sure what the purpose of the task is. The guy who created it wasn't logged in, so I don't know how we can ask. I'll throw a clarification template on it and take it out of the tasks category until it's been clarified. Also, the format isn't standard. It's interesting, but I think there are better ways to clarify the page layout than using the messagebox CSS class for the description.
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===Moved===
Moved this to data structures. --[[User:Short Circuit|Short Circuit]] 14:23, 10 November 2007 (MST)
== Deleted paragraph ==
The task formerly contained this paragraph: ''"Stacks as a containers presume copyable elements. I.e. stack elements have by-value semantics. This means that when an element is pushed onto the stack, a new instance of the element's type is created. This instance has a value equivalent to one the pushed element."''
I deleted this paragraph because the code ignored it. The implementations for Common Lisp, Factor, and Ruby copy references to objects; they never make "a new instance of the element's type". In general, stacks never presume to make such new instances. --[[User:Kernigh|Kernigh]] 19:07, 15 September 2011 (UTC)
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