macro_rules! aprintln {
($($arg:tt)*) => { ... };
}Expand description
Print a line with an optional [HH:MM:SS] timestamp prefix and
record it in the history buffer.
When TIMESTAMPS is enabled, prepends a time prefix to every
output line so blind operators can track when events occurred
without checking a clock. The time shown is UTC by default, or
local time if UTC_OFFSET_SECS has been set from
--local-time / --utc-offset.
Every printed line is also appended to the rolling history buffer
so the last REPL command can replay recent output. Plain
println! calls bypass this recording — use aprintln! whenever
a line is user-facing and should be replayable.