# Function std::fs::read

1.26.0 · source ·

    pub fn read<P: AsRef<Path>>(path: P) -> Result<Vec<u8>>

Expand description

Read the entire contents of a file into a bytes vector.

This is a convenience function for using `File::open` and `read_to_end` with fewer imports and without an intermediate variable.

## Errors

This function will return an error if `path` does not already exist. Other errors may also be returned according to `OpenOptions::open`.

While reading from the file, this function handles `io::ErrorKind::Interrupted` with automatic retries. See io::Read documentation for details.

## Examples

    use std::fs;
    use std::net::SocketAddr;

    fn main() -> Result<(), Box<dyn std::error::Error + 'static>> {
        let foo: SocketAddr = String::from_utf8_lossy(&fs::read("address.txt")?).parse()?;
        Ok(())
    }

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