net2/
utils.rs

1// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2// file at the top-level directory of this distribution and at
3// http://rust-lang.org/COPYRIGHT.
4//
5// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8// option. This file may not be copied, modified, or distributed
9// except according to those terms.
10
11
12#[doc(hidden)]
13pub trait NetInt {
14    fn from_be(i: Self) -> Self;
15    fn to_be(&self) -> Self;
16}
17macro_rules! doit {
18    ($($t:ident)*) => ($(impl NetInt for $t {
19        fn from_be(i: Self) -> Self { <$t>::from_be(i) }
20        fn to_be(&self) -> Self { <$t>::to_be(*self) }
21    })*)
22}
23doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize }
24
25#[doc(hidden)]
26pub trait One {
27    fn one() -> Self;
28}
29
30macro_rules! one {
31    ($($t:ident)*) => ($(
32        impl One for $t { fn one() -> $t { 1 } }
33    )*)
34}
35
36one! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize }
37
38
39#[doc(hidden)]
40pub trait Zero {
41    fn zero() -> Self;
42}
43
44macro_rules! zero {
45    ($($t:ident)*) => ($(
46        impl Zero for $t { fn zero() -> $t { 0 } }
47    )*)
48}
49
50zero! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize }
51
net2/utils.rs

net2/
utils.rs
