result

Any numeric variable.

expression

Any numeric expression.

Using this operator is almost the same as specifying result = result | expression, except that result is only evaluated once.

The |= operator coerces the arguments to matching data types. Then the |= operator looks at the binary representation of the values of result and expression and does a bitwise OR operation on them. The result of this operation behaves like this:

В	Copy Code
0101 (result) 1100 (expression) ---- 1101 (output)

Any time either of the expressions has a 1 in a digit, the result has a 1 in that digit. Otherwise, the result has a 0 in that digit.

Version 1

Reference

Concepts