Macro const_null_terminated_str 

macro_rules! const_null_terminated_str {
    ($strval:expr) => { ... };
}

Create a null-terminated utf-8 str as an rvalue. Appends a NUL byte to the passed string.

use null_terminated_str::{
    const_null_terminated_str,
    NullTerminatedStr
};
use std::ops::Deref;

const S: &NullTerminatedStr = const_null_terminated_str!("Hello, World!");
assert_eq!(S.deref(), "Hello, World!");

If the str contains NULL bytes, then the compilation would fail.

use null_terminated_str::{
    const_null_terminated_str,
    NullTerminatedStr
};
use std::ops::Deref;

const S: &NullTerminatedStr = const_null_terminated_str!("Hello,\0 World!");
assert_eq!(S.deref(), "Hello, World!");