Documentation
2 Bitwise関数
ここにリストされているすべての関数は、次でサポートされています。
関数は追加情報なしでリストされています。関数をクリックして詳細を確認してください。
| 関数 | Description |
|---|---|
| bitand | アイテム値とマスクの"ビット論理積"の値。 |
| bitlshift | アイテム値のビット単位左シフト。 |
| bitnot | アイテム値の"ビット否定"の値。 |
| bitor | アイテム値とマスクの"ビット論理和"の値。 |
| bitrshift | アイテム値のビット単位右シフト。 |
| bitxor | アイテム値とマスクの"ビット排他的論理和"の値。 |
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.
サポートされているすべての関数を参照してください。