25 lines
870 B
Rust
25 lines
870 B
Rust
|
// Copyright 2017 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.
|
||
|
|
|
||
|
|
// compile-flags: -C debug_assertions=no
|
||
|
|
|
||
|
|
#![feature(i128_type)]
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
for i in 129..256 {
|
||
|
|
assert_eq!((i as u8).next_power_of_two(), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
assert_eq!(((1u16 << 15) + 1).next_power_of_two(), 0);
|
||
|
|
assert_eq!(((1u32 << 31) + 1).next_power_of_two(), 0);
|
||
|
|
assert_eq!(((1u64 << 63) + 1).next_power_of_two(), 0);
|
||
|
|
assert_eq!(((1u128 << 127) + 1).next_power_of_two(), 0);
|
||
|
|
}
|