Macro microstr 

macro_rules! microstr {
    ($s:expr) => { ... };
    ($s:expr, $cap:expr) => { ... };
}

Creates a MicroStr containing the string slice.

microstr! allows optional argument cap

Example

use microstr::microstr;
let s_without_cap = microstr!("Hello, world");
let s_with_cap = microstr!("Hello, world", 20);
let s_with_less_cap = microstr!("Hello, world", 5);
 
assert_eq!(s_without_cap.capacity(), 12); // Minimal capacity to containing this string
assert_eq!(s_with_cap.capacity(), 20); // Capacity is set by user
assert_eq!(s_with_less_cap.capacity(), 5); // Capacity is set by user
assert_eq!(s_with_less_cap.as_str(), "Hello"); // Truncated