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Macro std::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.

Panics

Panics if writing to io::stderr fails.

Examples

eprint!("Error: Could not complete task");

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/macro.eprint.html