fun panic(_ message: String): Never
Terminates the program unconditionally and reports a message which explains why the unrecoverable error occurred.
let optionalAccount: Account? = // ... let account = optionalAccount ?? panic("missing account")
fun assert(_ condition: Bool, message: String)
Terminates the program if the given condition is false, and reports a message which explains how the condition is false. Use this function for internal sanity checks.
The message argument is optional.
fun unsafeRandom(): UInt64
Returns a pseudo-random number.
NOTE: The use of this function is unsafe if not used correctly.
Follow best practices to prevent security issues when using this function.