diff options
Diffstat (limited to 'src/doc/book/listings/ch09-error-handling/listing-09-07')
3 files changed, 28 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.lock b/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.lock new file mode 100644 index 000000000..1fa96b797 --- /dev/null +++ b/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "error-handling" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.toml b/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.toml new file mode 100644 index 000000000..c496db783 --- /dev/null +++ b/src/doc/book/listings/ch09-error-handling/listing-09-07/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "error-handling" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch09-error-handling/listing-09-07/src/main.rs b/src/doc/book/listings/ch09-error-handling/listing-09-07/src/main.rs new file mode 100644 index 000000000..f4564f670 --- /dev/null +++ b/src/doc/book/listings/ch09-error-handling/listing-09-07/src/main.rs @@ -0,0 +1,16 @@ +// ANCHOR: here +use std::fs::File; +use std::io; +use std::io::Read; + +fn read_username_from_file() -> Result<String, io::Error> { + let mut username_file = File::open("hello.txt")?; + let mut username = String::new(); + username_file.read_to_string(&mut username)?; + Ok(username) +} +// ANCHOR_END: here + +fn main() { + let username = read_username_from_file().expect("Unable to get username"); +} |