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C++ In a Nutshell
book

C++ In a Nutshell

by Ray Lischner
May 2003
Intermediate to advanced content levelIntermediate to advanced
808 pages
32h 24m
English
O'Reilly Media, Inc.
Content preview from C++ In a Nutshell

Name

or_eq operator — Bitwise or assignment operator

Synopsis

               assignment-expr := logical-or-expr "|=" assignment-expr | 
    logical-or-expr or_eq assignment-expr
            

The or_eq operator is an assignment operator that performs bitwise inclusive or. It is equivalent to logical-or-expr = logical-or-expr | assignment-expr except that logical-or-expr is evaluated only once.

The keyword or_eq is interchangeable with the |= token.

Example

unsigned bitmask = 0xF0F0;
bitmask|= 0x0102; // bitmask becomes 0xF1F2.

See Also

and_eq, bitor, expression, xor_eq, Chapter 3, <ciso646>

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Publisher Resources

ISBN: 059600298XSupplemental ContentErrata Page