Macro eprint
macro_rules! eprint {
($($arg:tt)*) => { ... };
}Prints to the standard error.
Equivalent to the [print!] macro, except that output goes to
io::stderr instead of io::stdout. See [print!] for
example usage.
Use eprint! only for error and progress messages. Use print!
instead for the primary output of your program.
See the formatting documentation in std::fmt
for details of the macro argument syntax.
Panics
Panics if writing to io::stderr fails.
Writing to non-blocking stderr can cause an error, which will lead this macro to panic.
Examples
eprint!;