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====Algol 68's distributive field selection==== In Algol 68, if <code>Pts</code> was an array of records, each with integer fields <code>X</code> and <code>Y</code>, one could write <code>Y '''of''' Pts</code> to obtain an array of integers, consisting of the <code>Y</code> fields of all the elements of <code>Pts</code>. As a result, the statements <code>Y '''of''' Pts[3] := 7</code> and <code>(Y '''of''' Pts)[3] := 7</code> would have the same effect.
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