Module rand 

Random value generation and randomized truncation helpers.

These helpers use the thread-local generator for strings, indexes, shuffles, durations, and event identifiers. Range arguments use half-open semantics.

Functions

event_id

Generates a Matrix event identifier from 32 random bytes.

index

Chooses a uniformly random index below len.

secs

Generates a Duration with a random whole-second length.

shuffle

Randomly permutes a slice in place.

string

Generates an alphanumeric ASCII string of the requested byte length.

string_array

Generates an alphanumeric ASCII string that fills a fixed-capacity array.

string_from

Generates a string of length characters sampled from charset.

time_from_now_secs

Adds a random whole-second offset to the current SystemTime.

truncate_str

Borrows a prefix ending at a randomly selected character count.

truncate_string

Truncates an owned string at a randomly selected character count.