After I call TermLogger::init at the start of the main thread then spin up multiple worker threads, is it safe to use the usual logging macros in these threads without additional synchronisation?

In other words, is it possible for two threads to print at the same time, and instead of producing two good lines, produce two interleaved lines of garbage? (I suspect no but just want confirmation.)

And lastly, what about SimpleLogger and WriteLogger? Do they behave the same?

Thanks in advance.