From 7e8ee5ed9cad6484e9f13f81731b102ced58402e Mon Sep 17 00:00:00 2001
From: Adam Carpenter <gitlab@53hor.net>
Date: Tue, 9 Jul 2019 15:14:04 -0400
Subject: Init.

---
 rust-book/errors/Cargo.lock  |  4 ++++
 rust-book/errors/Cargo.toml  |  7 +++++++
 rust-book/errors/src/main.rs | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 49 insertions(+)
 create mode 100755 rust-book/errors/Cargo.lock
 create mode 100755 rust-book/errors/Cargo.toml
 create mode 100755 rust-book/errors/src/main.rs

(limited to 'rust-book/errors')

diff --git a/rust-book/errors/Cargo.lock b/rust-book/errors/Cargo.lock
new file mode 100755
index 0000000..749984f
--- /dev/null
+++ b/rust-book/errors/Cargo.lock
@@ -0,0 +1,4 @@
+[[package]]
+name = "errors"
+version = "0.1.0"
+
diff --git a/rust-book/errors/Cargo.toml b/rust-book/errors/Cargo.toml
new file mode 100755
index 0000000..e531a1b
--- /dev/null
+++ b/rust-book/errors/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "errors"
+version = "0.1.0"
+authors = ["Adam Carpenter <adam.carpenter@adp.com>"]
+edition = "2018"
+
+[dependencies]
diff --git a/rust-book/errors/src/main.rs b/rust-book/errors/src/main.rs
new file mode 100755
index 0000000..1250677
--- /dev/null
+++ b/rust-book/errors/src/main.rs
@@ -0,0 +1,38 @@
+use std::io;
+use std::io::Read;
+use std::fs::File;
+//use std::io::ErrorKind;
+
+fn read_username_from_file() -> Result<String, io::Error> {
+//    let f = File::open("hello.txt");
+//    let mut f = match f {
+//        Ok(file) => file,
+//        Err(e) => return Err(e),
+//    };
+//    let mut s = String::new();
+//    match f.read_to_string(&mut s) {
+//        Ok(_) => Ok(s),
+//        Err(e) => Err(e),
+//    }
+    let mut s = String::new();
+    File::open("hello.txt")?.read_to_string(&mut s)?;
+    Ok(s)
+}
+fn main() {
+//    let f = File::open("hello.txt").map_err(|error| {
+//        if error.kind() == ErrorKind::NotFound {
+//            File::create("hello.txt").unwrap_or_else(|error| {
+//                panic!("Could not create file: {:?}", error);
+//            })
+//        }
+//        else {
+//            panic!("Problem opening file: {:?}", error);
+//        }
+//    });
+    
+    //let f = File::open("hello.txt").unwrap();
+
+    //let f = File::open("hello.txt").expect("failed to open hello.txt");
+
+    dbg!(read_username_from_file());
+}
-- 
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