Documentation
2 Bitwise functions
All functions listed here are supported in:
Some general notes on function parameters:
- Function parameters are separated by a comma
- Expressions are accepted as parameters
- Optional function parameters (or parameter parts) are indicated by
<>
| FUNCTION | ||
|---|---|---|
| Description | Function-specific parameters | Comments |
| bitand (value,mask) | ||
| Value of "bitwise AND" of an item value and mask. | value - value to check mask (mandatory) - 64-bit unsigned integer (0 - 18446744073709551615) |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. Examples: => bitand(last(/host/key),12)=8 or bitand(last(/host/key),12)=4 → 3rd or 4th bit set, but not both at the same time => bitand(last(/host/key),20)=16 → 3rd bit not set and 5th bit set. |
| bitlshift (value,bits to shift) | ||
| Bitwise shift left of an item value. | value - value to check bits to shift (mandatory) - number of bits to shift |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. |
| bitnot (value) | ||
| Value of "bitwise NOT" of an item value. | value - value to check |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. |
| bitor (value,mask) | ||
| Value of "bitwise OR" of an item value and mask. | value - value to check mask (mandatory) - 64-bit unsigned integer (0 - 18446744073709551615) |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. |
| bitrshift (value,bits to shift) | ||
| Bitwise shift right of an item value. | value - value to check bits to shift (mandatory) - number of bits to shift |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. |
| bitxor (value,mask) | ||
| Value of "bitwise exclusive OR" of an item value and mask. | value - value to check mask (mandatory) - 64-bit unsigned integer (0 - 18446744073709551615) |
Supported value types: int Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100. |
Function details
Some general notes on function parameters:
- Function parameters are separated by a comma
- Expressions are accepted as parameters
- Optional function parameters (or parameter parts) are indicated by
<>
bitand(value,mask)
The value of "bitwise AND" of an item value and mask.
Supported value types: Integer.
Parameter:
- value - the value to check;
- mask (mandatory) - a 64-bit unsigned integer (0 - 18446744073709551615).
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.
Examples:
bitand(last(/host/key),12)=8 or bitand(last(/host/key),12)=4 #3rd or 4th bit set, but not both at the same time
bitand(last(/host/key),20)=16 #3rd bit not set and 5th bit setbitlshift(value,bits to shift)
The bitwise shift left of an item value.
Supported value types: Integer.
Parameter:
- value - the value to check;
- bits to shift (mandatory) - the number of bits to shift.
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.
bitnot(value)
The value of "bitwise NOT" of an item value.
Supported value types: Integer.
Parameter:
- value - the value to check.
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.
bitor(value,mask)
The value of "bitwise OR" of an item value and mask.
Supported value types: Integer.
Parameter:
- value - the value to check;
- mask (mandatory) - a 64-bit unsigned integer (0 - 18446744073709551615).
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.
bitrshift(value,bits to shift)
The bitwise shift right of an item value.
Supported value types: Integer.
Parameter:
- value - the value to check;
- bits to shift (mandatory) - the number of bits to shift.
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.
bitxor(value,mask)
The value of "bitwise exclusive OR" of an item value and mask.
Supported value types: Integer.
Parameter:
- value - the value to check;
- mask (mandatory) - a 64-bit unsigned integer (0 - 18446744073709551615).
Although the comparison is done in a bitwise manner, all the values must be supplied and are returned in decimal. For example, checking for the 3rd bit is done by comparing to 4, not 100.