GETBIT

Syntax

  1. GETBIT key offset

Time complexity: O(1)

Returns the bit value at offset (zero-indexed) in the string value stored at key.

When offset is beyond the string length, the string is assumed to be a contiguous space with 0 bits. When key does not exist it is assumed to be an empty string, so offset is always out of range and the value is also assumed to be a contiguous space with 0 bits.

Return

Integer reply: the bit value stored at offset.

Examples

  1. dragonfly> SET mykey "\x42" # 0100'0010
  2. dragonfly> GETBIT mykey 0
  3. (integer) 0
  4. dragonfly> GETBIT mykey 1
  5. (integer) 1
  6. dragonfly> GETBIT mykey 6
  7. (integer) 1
  8. dragonfly> GETBIT mykey 100
  9. (integer) 0