bitwise OR
Bitwise OR is a bit-level operation on two binary values which indicates which bits are set in either value. For each position , if the bit in either value is 1, then of the result is 1, otherwise it’s 0. For example, given 50 and 163 in two unsigned bytes, a bitwise OR returns 179.
| 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | |
| OR | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|
| = | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 |
In most high-level programming languages that offer bitwise OR, the usual operator is a single pipe line (—), not to be confused with a double pipe line (——) which performs a Boolean OR, returning a True or False value.
The Windows Calculator offers bitwise OR in scientific calculator mode, while the Mac OS X Calculator offers it in programmer mode.
| Title | bitwise OR |
|---|---|
| Canonical name | BitwiseOR |
| Date of creation | 2013-03-22 17:02:48 |
| Last modified on | 2013-03-22 17:02:48 |
| Owner | PrimeFan (13766) |
| Last modified by | PrimeFan (13766) |
| Numerical id | 4 |
| Author | PrimeFan (13766) |
| Entry type | Definition |
| Classification | msc 11A63 |
| Related topic | BitwiseAND |
| Related topic | BitwiseXOR |
| Related topic | BitwiseNOT |