Low-level functions for hash sets — hash_set_exists • hashtable

Low-level functions for hash sets

Usage

hash_set_exists(h, keys)

hash_set_insert(h, keys)

hash_set_delete(h, keys)

hash_set_size(h)

hash_set_get_all_keys(h)

hash_set_clear(h)

hash_set_copy(h)

Arguments

h: A hash_set object.
keys: A single or a vector of keys.

Value

hash_set_exists() returns a logical vector.
hash_set_insert()/hash_set_delete()/hash_set_clear() directly modifies the input object h.
hash_set_size() returns a single integer.
hash_set_get_all_keys() returns a vector of all keys.
hash_set_copy() returns a new hash_table object.

Examples

h = hash_set(letters)
hash_set_exists(h, "a")
#> [1] TRUE
hash_set_exists(h, "aa")
#> [1] FALSE
hash_set_insert(h, "aa")
hash_set_exists(h, "aa")
#> [1] TRUE
hash_set_delete(h, "aa")