Compound data type: Difference between revisions
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=={{header|ATS}}==
There are numerous ways to do this. The simplest is to use an unallocated tuple type:
<lang ATS>typedef point (t : t@ype+) = @(t, t)
val p : point double = (1.0, 3.0)</lang>
If one insists both that the type be unique (as opposed to an alias for a tuple) and that the notation to create a point be '''Point (x, y)''', then the following works:
<lang ATS>datatype point (t : t@ype+) =
| Point of (t, t)
val p : point double = Point (1.0, 3.0)</lang>
=={{header|AutoHotkey}}==
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