Function std::env::set_varUnstable

pub fn set_var<K: ?Sized, V: ?Sized>(k: &K, v: &V) where K: AsOsStr, V: AsOsStr

Sets the environment variable k to the value v for the currently running process.

Example

fn main() { use std::env; let key = "KEY"; env::set_var(key, "VALUE"); assert_eq!(env::var(key), Ok("VALUE".to_string())); }

use std::env;

let key = "KEY";
env::set_var(key, "VALUE");
assert_eq!(env::var(key), Ok("VALUE".to_string()));