Difference between revisions of "BitNot"
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[[category:Bit functions]] | [[category:Bit functions]] | ||
| − | + | == BitNot(x) == | |
| − | |||
| − | == BitNot( x ) == | ||
| − | |||
Returns the bitwise one's complement of the integer portion of a number. Each 1 bit in «x» is changed to 0, and each 0 bit changed to «1». | Returns the bitwise one's complement of the integer portion of a number. Each 1 bit in «x» is changed to 0, and each 0 bit changed to «1». | ||
Each integer is treated as having 64 bits. The two's complement binary representation is used for negative numbers. | Each integer is treated as having 64 bits. The two's complement binary representation is used for negative numbers. | ||
| − | This will generally be equivalent to <code>-(x+1)</code> when «x» is an integer, but if you are manipulating the bits of an integer, the use of this function makes your intent more obvious. | + | This will generally be equivalent to <code>-(x + 1)</code> when «x» is an integer, but if you are manipulating the bits of an integer, the use of this function makes your intent more obvious. |
== Examples == | == Examples == | ||
| + | :<code>BitNot(55) → -56</code> | ||
| − | |||
The same example shown in [[Binary and hexadecimal integer formats|binary notation]] makes the bit inversion obvious | The same example shown in [[Binary and hexadecimal integer formats|binary notation]] makes the bit inversion obvious | ||
| − | :<code> | + | :<code>BitNot(0b110111) → 0b1111111111111111111111111111111111111111111111111111111111001000</code> |
| + | |||
| + | ==History== | ||
| + | Introduced in [[Analytica 5.0]]. | ||
== See Also == | == See Also == | ||
| − | * [[BitOr]] | + | * [[BitOr]] |
| − | * [[BitCount]] | + | * [[BitAnd]] |
| + | * [[BitXOr]] | ||
| + | * [[BitCount]] | ||
| + | * [[BitShift]] | ||
* Logical [[Not]] | * Logical [[Not]] | ||
Latest revision as of 01:27, 28 April 2016
BitNot(x)
Returns the bitwise one's complement of the integer portion of a number. Each 1 bit in «x» is changed to 0, and each 0 bit changed to «1».
Each integer is treated as having 64 bits. The two's complement binary representation is used for negative numbers.
This will generally be equivalent to -(x + 1) when «x» is an integer, but if you are manipulating the bits of an integer, the use of this function makes your intent more obvious.
Examples
BitNot(55) → -56
The same example shown in binary notation makes the bit inversion obvious
BitNot(0b110111) → 0b1111111111111111111111111111111111111111111111111111111111001000
History
Introduced in Analytica 5.0.
See Also
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