Function closed_pipe 

pub fn closed_pipe(message: &str) -> bool

True when message is the panic of a print to stdout or stderr that failed because the reader closed the pipe. println!, eprintln! and the macros of anstream panic with this message.

use riff_core::pipe::closed_pipe;

assert!(closed_pipe("failed printing to stderr: Broken pipe (os error 32)"));
assert!(!closed_pipe("Broken pipe (os error 32)"));