Talk:Jensen's Device: Difference between revisions
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Not knowing much about ALGOL60, I'm curious about its semantics -- why is i declared twice? When iterating over i, is that value being assigned local to sum, or is it being assigned in sum's caller? --[[User:Saccade|Saccade]] 21:50, 5 May 2011 (UTC) |
Not knowing much about ALGOL60, I'm curious about its semantics -- why is i declared twice? When iterating over i, is that value being assigned local to sum, or is it being assigned in sum's caller? --[[User:Saccade|Saccade]] 21:50, 5 May 2011 (UTC) |
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:<code>i</code> is passed by reference to <code>sum</code>, the "first declaration" represents the declaration of the storage and the "second declaration" is the declaration of the type of the argument (much like a K&R C parameter list) in the parameters for <code>sum</code>. --[[User:Rdm|Rdm]] 21:57, 5 May 2011 (UTC) |
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