// 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.
/// A simple static assertion macro. The first argument should be a unique
/// ALL_CAPS identifier that describes the condition.
#[macro_export]
#[allow_internal_unstable]
macro_rules! static_assert {
($name:ident: $test:expr) => {
// Use the bool to access an array such that if the bool is false, the access
// is out-of-bounds.
#[allow(dead_code)]
static $name: () = [()][!($test: bool) as usize];
}
}