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11 lines
420 B
Rust

use std::io::Write;
fn main() {
//Create a memory buffer
let buffer = b"Hello, this is error message from standard error stream\n";
// Get handle to output error stream
let stderr_handle = std::io::stderr();
// Lock the handle to output error stream
let mut locked_stderr_handle = stderr_handle.lock();
// write into error stream from buffer
locked_stderr_handle.write(buffer).unwrap();
}