I have a simple piece of code that is supposed to read a file into a vector by lines
use std::io::{self, Read};
use std::fs::File;
fn file_to_vec(filename: &str) -> Result<Vec<&str>, io::Error> {
let mut file = try!(File::open(filename));
let mut string = String::new();
try!(file.read_to_string(&mut string));
string.replace("
", "");
let data: Vec<&str> = string.split('
').collect();
Ok(data)
}
fn main() {}
I am getting the following error:
error[E0597]: `string` does not live long enough
--> src/main.rs:10:27
|
10 | let data: Vec<&str> = string.split('
').collect();
| ^^^^^^ does not live long enough
...
13 | }
| - borrowed value only lives until here
|
note: borrowed value must be valid for the anonymous lifetime #1 defined on the function body at 4:1...
--> src/main.rs:4:1
|
4 | / fn file_to_vec(filename: &str) -> Result<Vec<&str>, io::Error> {
5 | | let mut file = try!(File::open(filename));
6 | | let mut string = String::new();
7 | | try!(file.read_to_string(&mut string));
... |
12 | | Ok(data)
13 | | }
| |_^
Why do I keep getting this error? How do I fix this? I imagine that it has something to do with the split
method.
I could return the string and then split it into a Vec
in the main function, but I really want to return a vector.
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