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#[macro_export]
macro_rules! err {
($($arg:tt)*) => {
{
use std::io::{self, Write};
use std::error::Error;
let str=format!($($arg)*);
match io::stderr().write(&str.as_bytes()) {
Ok(_) => {}
Err(e) => panic!("panic!: to err! '{}' met '{}'", &str, e.description()),
};
}
};
}
#[macro_export]
macro_rules! errln {
() => (err!("\n"));
($fmt:expr) => (err!(concat!($fmt, "\n")));
($fmt:expr, $($arg:tt)*) => (err!(concat!($fmt, "\n"), $($arg)*));
}
#[macro_export]
macro_rules! errst {
($($arg:tt)*) => {
{
use std::io::{self, Write};
let str=format!($($arg)*);
match io::stderr().write(&str.as_bytes()) {
Ok(_) => {}
Err(_) => {}
};
}
};
}
#[macro_export]
macro_rules! errstln {
() => (errst!("\n"));
($fmt:expr) => (errst!(concat!($fmt, "\n")));
($fmt:expr, $($arg:tt)*) => (errst!(concat!($fmt, "\n"), $($arg)*));
}