bitwise NOT
Bitwise NOT is a bit-level operation on a single binary value that sets the bits that are off and turns off the bits that are on. For example, performing a bitwise NOT on 163 gives 92.
| NOT | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|
| = | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 |
Performing a bitwise NOT on a number has the same effect as performing a bitwise XOR on a Mersenne number of the form (where is the bit size of the data type in use, e.g., 8 for bytes, 16 for words, 32 for double words, etc.) and . Obviously a bitwise NOT on 0 gives the largest Mersenne number that can fit in the data type in use.
The Windows Calculator offers bitwise NOT in scientific calculator mode, while the Mac OS X Calculator offers it in programmer mode.
| Title | bitwise NOT |
|---|---|
| Canonical name | BitwiseNOT |
| Date of creation | 2013-03-22 17:02:55 |
| Last modified on | 2013-03-22 17:02:55 |
| 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 | BitwiseOR |
| Related topic | BitwiseXOR |