union

operator

Return type:
Integer
Returns:
A bit sequence.
Syntax
numeric-expression union numeric-expression


Purpose

The union of two bit sequences is a new sequence where each bit is:

  • 1 if the corresponding bit in either of the operands is 1
  • 0 if the corresponding bit in both of the operands is 0

Other languages sometimes refer to this as the "bit-wise or" because the operation is analogous to the logical "or" operation. OmniMark reserves or and the operator | for the logical "or" operation in order to avoid confusion.

This code fragment turns on the lowest order bit in c: 

  set c to union 1

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