-// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
/// This macro creates a zero-overhead &CStr by adding a NUL terminator to
/// the string literal passed into it at compile-time. Use it like:
///
/// builds.
#[macro_export]
macro_rules! const_cstr {
- ($s:expr) => ({
+ ($s:expr) => {{
use std::ffi::CStr;
let str_plus_nul = concat!($s, "\0");
if cfg!(debug_assertions) {
CStr::from_bytes_with_nul(str_plus_nul.as_bytes()).unwrap()
} else {
- unsafe {
- CStr::from_bytes_with_nul_unchecked(str_plus_nul.as_bytes())
- }
+ unsafe { CStr::from_bytes_with_nul_unchecked(str_plus_nul.as_bytes()) }
}
- })
+ }};
}