Module block_size

Utility related to block size part of the fuzzy hash.

See also: “Block Size” section of FuzzyHashData

Constants

MIN

The minimum block size of a fuzzy hash.

NUM_VALID

The number of valid block sizes.

Functions

cmp

Compares two base-2 logarithm forms of the block size values for ordering.

compare_sizes

Compare two base-2 logarithm forms of the block size values to determine the relation between two block sizes.

from_log

Converts base-2 logarithm form of the block size to the actual one.

from_log_unchecked^⚠unchecked

Converts base-2 logarithm form of the block size to the actual one without checking validity of the block size.

is_log_valid

Checks whether base-2 logarithm form of the block size is valid.

is_near

Checks whether two base-2 logarithm forms of the block size values form a near relation (one of the three near cases).

is_near_eq

Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearEq relation.

is_near_gt

Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearGt relation.

is_near_lt

Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearLt relation.

is_valid

Checks whether a given block size is valid.

log_from_valid

Computes the base-2 logarithm form of a valid block size.

log_from_valid_unchecked^⚠unchecked

Computes the base-2 logarithm form of a valid block size but do not check whether the block size is valid.