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use std::{error::Error, io, process};
// This introduces a type alias so that we can conveniently reference our
// record type.
type Record = (String, String, Option<u64>, f64, f64);
fn run() -> Result<(), Box<dyn Error>> {
let mut rdr = csv::Reader::from_reader(io::stdin());
// Instead of creating an iterator with the `records` method, we create
// an iterator with the `deserialize` method.
for result in rdr.deserialize() {
// We must tell Serde what type we want to deserialize into.
let record: Record = result?;
println!("{:?}", record);
}
Ok(())
}
fn main() {
if let Err(err) = run() {
println!("{}", err);
process::exit(1);
}
}
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