Redis Roaring

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R64.BITPOS ​

CategoryDescription
SyntaxR64.BITPOS key bit
Time complexityO(C)
Supports structuresBitmap64
Command descriptionReturn the position of the first bit set to 1 or 0

Parameter ​

  • key: The key of the Roaring data structure.
  • bit: The value of the bit whose offset you want to retrieve. The bit value can be 0 or 1.

Output ​

  • If the operation is successful, the offset of the bit that has a value of 1 or 0 is returned.
  • If the key does not exist, a value of -1 is returned.
  • Otherwise, an error message is returned.

Examples ​

Basic Usage ​

$ redis-cli
127.0.0.1:6379> R64.SETINTARRAY foo 3 5 6
127.0.0.1:6379> R64.BITPOS foo 1
"3"

Usage Notes ​

  • To properly handle bigint values, use RESP3 protocol; otherwise the result will be returned as a string