From 7e8ee5ed9cad6484e9f13f81731b102ced58402e Mon Sep 17 00:00:00 2001 From: Adam Carpenter Date: Tue, 9 Jul 2019 15:14:04 -0400 Subject: Init. --- meap/meap-code/ch2/ch2-read-file.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100755 meap/meap-code/ch2/ch2-read-file.rs (limited to 'meap/meap-code/ch2/ch2-read-file.rs') diff --git a/meap/meap-code/ch2/ch2-read-file.rs b/meap/meap-code/ch2/ch2-read-file.rs new file mode 100755 index 0000000..6114313 --- /dev/null +++ b/meap/meap-code/ch2/ch2-read-file.rs @@ -0,0 +1,21 @@ +use std::fs::File; +use std::io::BufReader; +use std::io::prelude::*; + +fn main() { + let mut f = File::open("readme.md").unwrap(); + let mut reader = BufReader::new(f); + + let mut line = String::new(); + loop { + let len = reader.read_line(&mut line).unwrap(); + + if len == 0 { + break + } + println!("{} ({} bytes long)", line, len); + + line.truncate(0); + } + +} -- cgit v1.2.3