;+ ; Raises an error if the given condition is not met. ; ; @param condition {in}{required}{type=boolean} condition to assert ; @param msg {in}{optional}{type=string}{default="Assertion failed"} message to ; throw if condition is not met ;- pro assert, condition, msg compile_opt strictarr, logical_predicate, hidden on_error, 2 if (~condition) then message, n_elements(msg) eq 0 ? 'Assertion failed' : msg end