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GETBIT

Syntax​

GETBIT key offset

Time complexity: O(1)

ACL categories: @read, @bitmap, @fast

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​

dragonfly> SET mykey "\x42"  # 0100'0010
dragonfly> GETBIT mykey 0
(integer) 0
dragonfly> GETBIT mykey 1
(integer) 1
dragonfly> GETBIT mykey 6
(integer) 1
dragonfly> GETBIT mykey 100
(integer) 0