print in std - Rust (original) (raw)
Macro std::print
macro_rules! print {
($($arg:tt)*) => { ... };
}Expand description
Prints to the standard output.
Equivalent to the println! macro except that a newline is not printed at the end of the message.
Note that stdout is frequently line-buffered by default so it may be necessary to use io::stdout().flush() to ensure the output is emitted immediately.
Use print! only for the primary output of your program. Useeprint! instead to print error and progress messages.
Panics if writing to io::stdout() fails.
use std::io::{self, Write};
print!("this ");
print!("will ");
print!("be ");
print!("on ");
print!("the ");
print!("same ");
print!("line ");
io::stdout().flush().unwrap();
print!("this string has a newline, why not choose println! instead?\n");
io::stdout().flush().unwrap();