1 use std::{error::Error, io, process};
2 
example() -> Result<(), Box<dyn Error>>3 fn example() -> Result<(), Box<dyn Error>> {
4     let mut wtr = csv::Writer::from_writer(io::stdout());
5 
6     // When writing records without Serde, the header record is written just
7     // like any other record.
8     wtr.write_record(&["city", "region", "country", "population"])?;
9     wtr.write_record(&["Southborough", "MA", "United States", "9686"])?;
10     wtr.write_record(&["Northbridge", "MA", "United States", "14061"])?;
11     wtr.flush()?;
12     Ok(())
13 }
14 
main()15 fn main() {
16     if let Err(err) = example() {
17         println!("error running example: {}", err);
18         process::exit(1);
19     }
20 }
21