Macro flexstr::flex_fmt

macro_rules! flex_fmt {
    ($($arg:tt)*) => { ... };
}

FlexStr equivalent to format! macro from stdlib. Efficiently creates a native FlexStr

use flexstr::flex_fmt;

let a = flex_fmt!("Is {}", "inlined");
assert!(a.is_inlined());
assert_eq!(a, "Is inlined")