class Tkrzw::Utility

Gets the Levenshtein edit distance of two strings.

• @param a A string.

• @param b The other string.

• @param utf If true, strings are treated as UTF-8 and the edit distance is by the Unicode character.

• @return The Levenshtein edit distance of the two strings.

# File tkrzw.rb, line 76
def self.edit_distance_lev(a, b, utf=false)
  # (native code)
end

Gets the memory capacity of the platform.

• @return The memory capacity of the platform in bytes, or -1 on failure.

# File tkrzw.rb, line 45
def self.get_memory_capacity()
  # (native code)
end

Gets the current memory usage of the process.

• @return The current memory usage of the process in bytes, or -1 on failure.

# File tkrzw.rb, line 51
def self.get_memory_usage()
  # (native code)
end

Primary hash function for the hash database.

• @param data The data to calculate the hash value for.

• @param num_buckets The number of buckets of the hash table. If it is omitted, UINT64MAX is set.

• @return The hash value.

# File tkrzw.rb, line 59
def self.primary_hash(data, num_buckets=nil)
  # (native code)
end

Secondary hash function for sharding.

• @param data The data to calculate the hash value for.

• @param num_shards The number of shards. If it is omitted, UINT64MAX is set.

• @return The hash value.

# File tkrzw.rb, line 67
def self.secondary_hash(data, num_shards=nil)
  # (native code)
end