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| + | union |
| - | difference (x-y=x*(-y)) |
| * | intersection |
| / | symmetric set difference (x/y=(x-y)+(y-x)) |
Set operators can be applied to operands of type SET only and yield a result of type SET. The unary minus sign denotes the complement of x; that is, -x denotes the set of integers between 0 and MAX(SET) (0..31 for this compiler) that are not elements of x.
A set constructor defines the value of a set by listing its elements between braces. The elements must be integers in the range 0..MAX(SET) (0..31 for this compiler). A range a..b denotes all integers in the interval [a,b].
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Canterbury Oberon-2 for Java (Last documentation update
Feb 8, 2000)
Copyright © 1998 Mill Hill &
Canterbury Corporation, Ltd. All rights reserved
Please send any comments or corrections to
mhc@webcom.com