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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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third_party/rust/byteorder/.cargo-checksum.json vendored Normal file
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{"files":{".cargo-ok":"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",".gitignore":"2879af3c0512f976015d532e2d768f04ff22fdcf8745b69b955b78fda321c3fb",".travis.yml":"81545ce3c6c72111a68434464c3f9fa8df9cbe39759a081fac527628ab21ae0c","COPYING":"01c266bced4a434da0051174d6bee16a4c82cf634e2679b6155d40d75012390f","Cargo.toml":"a7282931b50dff2e463f82baaed95a9d76636bc0fef3e921acd8ca69eab32b83","LICENSE-MIT":"0f96a83840e146e43c0ec96a22ec1f392e0680e6c1226e6f3ba87e0740af850f","Makefile":"a45a128685a2ae7d4fa39d310786674417ee113055ef290a11f88002285865fc","README.md":"fbcc46b6d0a585096737f50922818b59016b69d959b05f1b29863b2af8e4da43","UNLICENSE":"7e12e5df4bae12cb21581ba157ced20e1986a0508dd10d0e8a4ab9a4cf94e85c","benches/bench.rs":"f583692d829c8dfe19b1d5b9e968ccf5c74d6733367ca183edff74041a6afedd","session.vim":"95cb1d7caf0ff7fbe76ec911988d908ddd883381c925ba64b537695bc9f021c4","src/lib.rs":"ef9e7a218fa3a4912c47f6840d32b975940d98277b6c9be85e8d7d045552eb87","src/new.rs":"161c21b7ebb5668c7cc70b46b0eb37709e06bb9c854f2fdfc6ce3d3babcbf3de"},"package":"0fc10e8cc6b2580fda3f36eb6dc5316657f812a3df879a44a66fc9f0fdbc4855"}

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.*.swp
doc
tags
build
target
Cargo.lock

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language: rust
matrix:
include:
- rust: "nightly"
env: TEST_SUITE=suite_nightly
- rust: "beta"
env: TEST_SUITE=suite_beta
- rust: "stable"
env: TEST_SUITE=suite_stable
script:
- cargo build --verbose
- cargo test --verbose
- if [ "$TEST_SUITE" = "suite_nightly" ]; then
cargo bench --verbose;
fi

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This project is dual-licensed under the Unlicense and MIT licenses.
You may use this code under the terms of either license.

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[package]
name = "byteorder"
version = "0.5.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = "Library for reading/writing numbers in big-endian and little-endian."
documentation = "http://burntsushi.net/rustdoc/byteorder/"
homepage = "https://github.com/BurntSushi/byteorder"
repository = "https://github.com/BurntSushi/byteorder"
readme = "README.md"
keywords = ["byte", "endian", "big-endian", "little-endian", "binary"]
license = "Unlicense/MIT"
[lib]
name = "byteorder"
[dev-dependencies]
quickcheck = "0.2"
rand = "0.3"
[features]
default = ["std"]
std = []
[profile.bench]
opt-level = 3

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third_party/rust/byteorder/LICENSE-MIT vendored Normal file
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The MIT License (MIT)
Copyright (c) 2015 Andrew Gallant
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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all:
echo Nothing to do...
ctags:
ctags --recurse --options=ctags.rust --languages=Rust
docs:
cargo doc
in-dir ./target/doc fix-perms
rscp ./target/doc/* gopher:~/www/burntsushi.net/rustdoc/
push:
git push origin master
git push github master

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This crate provides convenience methods for encoding and decoding numbers in
either big-endian or little-endian order. This is meant to replace the old
methods defined on the standard library `Reader` and `Writer` traits.
[![Build status](https://api.travis-ci.org/BurntSushi/byteorder.png)](https://travis-ci.org/BurntSushi/byteorder)
[![](http://meritbadge.herokuapp.com/byteorder)](https://crates.io/crates/byteorder)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[http://burntsushi.net/rustdoc/byteorder/](http://burntsushi.net/rustdoc/byteorder/).
The documentation includes examples.
### Installation
This crate works with Cargo and is on
[crates.io](https://crates.io/crates/byteorder). The package is regularly
updated. Add it to your `Cargo.toml` like so:
```toml
[dependencies]
byteorder = "0.5"
```
If you want to augment existing `Read` and `Write` traits, then import the
extension methods like so:
```rust
extern crate byteorder;
use byteorder::{ReadBytesExt, WriteBytesExt, BigEndian, LittleEndian};
```
For example:
```rust
use std::io::Cursor;
use byteorder::{BigEndian, ReadBytesExt};
let mut rdr = Cursor::new(vec![2, 5, 3, 0]);
// Note that we use type parameters to indicate which kind of byte order
// we want!
assert_eq!(517, rdr.read_u16::<BigEndian>().unwrap());
assert_eq!(768, rdr.read_u16::<BigEndian>().unwrap());
```
### `no_std` crates
This crate has a feature, `std`, that is enabled by default. To use this crate
in a `no_std` context, add the following to your `Cargo.toml`:
```toml
[dependencies]
byteorder = { version = "0.5", default-features = false }
```

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This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>

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#![feature(test)]
extern crate byteorder;
extern crate test;
macro_rules! bench_num {
($name:ident, $read:ident, $bytes:expr, $data:expr) => (
mod $name {
use byteorder::{ByteOrder, BigEndian, NativeEndian, LittleEndian};
use super::test::Bencher;
use super::test::black_box as bb;
const NITER: usize = 100_000;
#[bench]
fn read_big_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(BigEndian::$read(&buf, $bytes));
}
});
}
#[bench]
fn read_little_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(LittleEndian::$read(&buf, $bytes));
}
});
}
#[bench]
fn read_native_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(NativeEndian::$read(&buf, $bytes));
}
});
}
}
);
($ty:ident, $max:ident,
$read:ident, $write:ident, $size:expr, $data:expr) => (
mod $ty {
use std::$ty;
use byteorder::{ByteOrder, BigEndian, NativeEndian, LittleEndian};
use super::test::Bencher;
use super::test::black_box as bb;
const NITER: usize = 100_000;
#[bench]
fn read_big_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(BigEndian::$read(&buf));
}
});
}
#[bench]
fn read_little_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(LittleEndian::$read(&buf));
}
});
}
#[bench]
fn read_native_endian(b: &mut Bencher) {
let buf = $data;
b.iter(|| {
for _ in 0..NITER {
bb(NativeEndian::$read(&buf));
}
});
}
#[bench]
fn write_big_endian(b: &mut Bencher) {
let mut buf = $data;
let n = $ty::$max;
b.iter(|| {
for _ in 0..NITER {
bb(BigEndian::$write(&mut buf, n));
}
});
}
#[bench]
fn write_little_endian(b: &mut Bencher) {
let mut buf = $data;
let n = $ty::$max;
b.iter(|| {
for _ in 0..NITER {
bb(LittleEndian::$write(&mut buf, n));
}
});
}
#[bench]
fn write_native_endian(b: &mut Bencher) {
let mut buf = $data;
let n = $ty::$max;
b.iter(|| {
for _ in 0..NITER {
bb(NativeEndian::$write(&mut buf, n));
}
});
}
}
);
}
bench_num!(u16, MAX, read_u16, write_u16, 2, [1, 2]);
bench_num!(i16, MAX, read_i16, write_i16, 2, [1, 2]);
bench_num!(u32, MAX, read_u32, write_u32, 4, [1, 2, 3, 4]);
bench_num!(i32, MAX, read_i32, write_i32, 4, [1, 2, 3, 4]);
bench_num!(u64, MAX, read_u64, write_u64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
bench_num!(i64, MAX, read_i64, write_i64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
bench_num!(f32, MAX, read_f32, write_f32, 4, [1, 2, 3, 4]);
bench_num!(f64, MAX, read_f64, write_f64, 8,
[1, 2, 3, 4, 5, 6, 7, 8]);
bench_num!(uint_1, read_uint, 1, [1]);
bench_num!(uint_2, read_uint, 2, [1, 2]);
bench_num!(uint_3, read_uint, 3, [1, 2, 3]);
bench_num!(uint_4, read_uint, 4, [1, 2, 3, 4]);
bench_num!(uint_5, read_uint, 5, [1, 2, 3, 4, 5]);
bench_num!(uint_6, read_uint, 6, [1, 2, 3, 4, 5, 6]);
bench_num!(uint_7, read_uint, 7, [1, 2, 3, 4, 5, 6, 7]);
bench_num!(uint_8, read_uint, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
bench_num!(int_1, read_int, 1, [1]);
bench_num!(int_2, read_int, 2, [1, 2]);
bench_num!(int_3, read_int, 3, [1, 2, 3]);
bench_num!(int_4, read_int, 4, [1, 2, 3, 4]);
bench_num!(int_5, read_int, 5, [1, 2, 3, 4, 5]);
bench_num!(int_6, read_int, 6, [1, 2, 3, 4, 5, 6]);
bench_num!(int_7, read_int, 7, [1, 2, 3, 4, 5, 6, 7]);
bench_num!(int_8, read_int, 8, [1, 2, 3, 4, 5, 6, 7, 8]);

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au BufWritePost *.rs silent!make ctags > /dev/null 2>&1

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/*!
This crate provides convenience methods for encoding and decoding numbers
in either big-endian or little-endian order.
The organization of the crate is pretty simple. A trait, `ByteOrder`, specifies
byte conversion methods for each type of number in Rust (sans numbers that have
a platform dependent size like `usize` and `isize`). Two types, `BigEndian`
and `LittleEndian` implement these methods. Finally, `ReadBytesExt` and
`WriteBytesExt` provide convenience methods available to all types that
implement `Read` and `Write`.
# Examples
Read unsigned 16 bit big-endian integers from a `Read` type:
```rust
use std::io::Cursor;
use byteorder::{BigEndian, ReadBytesExt};
let mut rdr = Cursor::new(vec![2, 5, 3, 0]);
// Note that we use type parameters to indicate which kind of byte order
// we want!
assert_eq!(517, rdr.read_u16::<BigEndian>().unwrap());
assert_eq!(768, rdr.read_u16::<BigEndian>().unwrap());
```
Write unsigned 16 bit little-endian integers to a `Write` type:
```rust
use byteorder::{LittleEndian, WriteBytesExt};
let mut wtr = vec![];
wtr.write_u16::<LittleEndian>(517).unwrap();
wtr.write_u16::<LittleEndian>(768).unwrap();
assert_eq!(wtr, vec![5, 2, 0, 3]);
```
*/
#![crate_name = "byteorder"]
#![doc(html_root_url = "http://burntsushi.net/rustdoc/byteorder")]
#![cfg_attr(not(feature = "std"), no_std)]
#![deny(missing_docs)]
#[cfg(feature = "std")]
extern crate core;
use core::mem::transmute;
use core::ptr::copy_nonoverlapping;
#[cfg(feature = "std")]
pub use new::{ReadBytesExt, WriteBytesExt};
#[cfg(feature = "std")]
mod new;
#[inline]
fn extend_sign(val: u64, nbytes: usize) -> i64 {
let shift = (8 - nbytes) * 8;
(val << shift) as i64 >> shift
}
#[inline]
fn unextend_sign(val: i64, nbytes: usize) -> u64 {
let shift = (8 - nbytes) * 8;
(val << shift) as u64 >> shift
}
#[inline]
fn pack_size(n: u64) -> usize {
if n < 1 << 8 {
1
} else if n < 1 << 16 {
2
} else if n < 1 << 24 {
3
} else if n < 1 << 32 {
4
} else if n < 1 << 40 {
5
} else if n < 1 << 48 {
6
} else if n < 1 << 56 {
7
} else {
8
}
}
/// ByteOrder describes types that can serialize integers as bytes.
///
/// Note that `Self` does not appear anywhere in this trait's definition!
/// Therefore, in order to use it, you'll need to use syntax like
/// `T::read_u16(&[0, 1])` where `T` implements `ByteOrder`.
///
/// This crate provides two types that implement `ByteOrder`: `BigEndian`
/// and `LittleEndian`.
///
/// # Examples
///
/// Write and read `u32` numbers in little endian order:
///
/// ```rust
/// use byteorder::{ByteOrder, LittleEndian};
///
/// let mut buf = [0; 4];
/// LittleEndian::write_u32(&mut buf, 1_000_000);
/// assert_eq!(1_000_000, LittleEndian::read_u32(&buf));
/// ```
///
/// Write and read `i16` numbers in big endian order:
///
/// ```rust
/// use byteorder::{ByteOrder, BigEndian};
///
/// let mut buf = [0; 2];
/// BigEndian::write_i16(&mut buf, -50_000);
/// assert_eq!(-50_000, BigEndian::read_i16(&buf));
/// ```
pub trait ByteOrder {
/// Reads an unsigned 16 bit integer from `buf`.
///
/// Panics when `buf.len() < 2`.
fn read_u16(buf: &[u8]) -> u16;
/// Reads an unsigned 32 bit integer from `buf`.
///
/// Panics when `buf.len() < 4`.
fn read_u32(buf: &[u8]) -> u32;
/// Reads an unsigned 64 bit integer from `buf`.
///
/// Panics when `buf.len() < 8`.
fn read_u64(buf: &[u8]) -> u64;
/// Reads an unsigned n-bytes integer from `buf`.
///
/// Panics when `nbytes < 1` or `nbytes > 8` or
/// `buf.len() < nbytes`
fn read_uint(buf: &[u8], nbytes: usize) -> u64;
/// Writes an unsigned 16 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 2`.
fn write_u16(buf: &mut [u8], n: u16);
/// Writes an unsigned 32 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 4`.
fn write_u32(buf: &mut [u8], n: u32);
/// Writes an unsigned 64 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 8`.
fn write_u64(buf: &mut [u8], n: u64);
/// Writes an unsigned integer `n` to `buf` using only `nbytes`.
///
/// If `n` is not representable in `nbytes`, or if `nbytes` is `> 8`, then
/// this method panics.
fn write_uint(buf: &mut [u8], n: u64, nbytes: usize);
/// Reads a signed 16 bit integer from `buf`.
///
/// Panics when `buf.len() < 2`.
#[inline]
fn read_i16(buf: &[u8]) -> i16 {
Self::read_u16(buf) as i16
}
/// Reads a signed 32 bit integer from `buf`.
///
/// Panics when `buf.len() < 4`.
#[inline]
fn read_i32(buf: &[u8]) -> i32 {
Self::read_u32(buf) as i32
}
/// Reads a signed 64 bit integer from `buf`.
///
/// Panics when `buf.len() < 8`.
#[inline]
fn read_i64(buf: &[u8]) -> i64 {
Self::read_u64(buf) as i64
}
/// Reads a signed n-bytes integer from `buf`.
///
/// Panics when `nbytes < 1` or `nbytes > 8` or
/// `buf.len() < nbytes`
#[inline]
fn read_int(buf: &[u8], nbytes: usize) -> i64 {
extend_sign(Self::read_uint(buf, nbytes), nbytes)
}
/// Reads a IEEE754 single-precision (4 bytes) floating point number.
///
/// Panics when `buf.len() < 4`.
#[inline]
fn read_f32(buf: &[u8]) -> f32 {
unsafe { transmute(Self::read_u32(buf)) }
}
/// Reads a IEEE754 double-precision (8 bytes) floating point number.
///
/// Panics when `buf.len() < 8`.
#[inline]
fn read_f64(buf: &[u8]) -> f64 {
unsafe { transmute(Self::read_u64(buf)) }
}
/// Writes a signed 16 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 2`.
#[inline]
fn write_i16(buf: &mut [u8], n: i16) {
Self::write_u16(buf, n as u16)
}
/// Writes a signed 32 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 4`.
#[inline]
fn write_i32(buf: &mut [u8], n: i32) {
Self::write_u32(buf, n as u32)
}
/// Writes a signed 64 bit integer `n` to `buf`.
///
/// Panics when `buf.len() < 8`.
#[inline]
fn write_i64(buf: &mut [u8], n: i64) {
Self::write_u64(buf, n as u64)
}
/// Writes a signed integer `n` to `buf` using only `nbytes`.
///
/// If `n` is not representable in `nbytes`, or if `nbytes` is `> 8`, then
/// this method panics.
#[inline]
fn write_int(buf: &mut [u8], n: i64, nbytes: usize) {
Self::write_uint(buf, unextend_sign(n, nbytes), nbytes)
}
/// Writes a IEEE754 single-precision (4 bytes) floating point number.
///
/// Panics when `buf.len() < 4`.
#[inline]
fn write_f32(buf: &mut [u8], n: f32) {
Self::write_u32(buf, unsafe { transmute(n) })
}
/// Writes a IEEE754 double-precision (8 bytes) floating point number.
///
/// Panics when `buf.len() < 8`.
#[inline]
fn write_f64(buf: &mut [u8], n: f64) {
Self::write_u64(buf, unsafe { transmute(n) })
}
}
/// Defines big-endian serialization.
///
/// Note that this type has no value constructor. It is used purely at the
/// type level.
#[allow(missing_copy_implementations)] pub enum BigEndian {}
/// Defines little-endian serialization.
///
/// Note that this type has no value constructor. It is used purely at the
/// type level.
#[allow(missing_copy_implementations)] pub enum LittleEndian {}
/// Defines network byte order serialization.
///
/// Network byte order is defined by [RFC 1700][1] to be big-endian, and is
/// referred to in several protocol specifications. This type is an alias of
/// BigEndian.
///
/// [1]: https://tools.ietf.org/html/rfc1700
///
/// Note that this type has no value constructor. It is used purely at the
/// type level.
pub type NetworkEndian = BigEndian;
/// Defines system native-endian serialization.
///
/// Note that this type has no value constructor. It is used purely at the
/// type level.
#[cfg(target_endian = "little")]
pub type NativeEndian = LittleEndian;
/// Defines system native-endian serialization.
///
/// Note that this type has no value constructor. It is used purely at the
/// type level.
#[cfg(target_endian = "big")]
pub type NativeEndian = BigEndian;
macro_rules! read_num_bytes {
($ty:ty, $size:expr, $src:expr, $which:ident) => ({
assert!($size == ::core::mem::size_of::<$ty>());
assert!($size <= $src.len());
let mut data: $ty = 0;
unsafe {
copy_nonoverlapping(
$src.as_ptr(),
&mut data as *mut $ty as *mut u8,
$size);
}
data.$which()
});
}
macro_rules! write_num_bytes {
($ty:ty, $size:expr, $n:expr, $dst:expr, $which:ident) => ({
assert!($size <= $dst.len());
unsafe {
// N.B. https://github.com/rust-lang/rust/issues/22776
let bytes = transmute::<_, [u8; $size]>($n.$which());
copy_nonoverlapping((&bytes).as_ptr(), $dst.as_mut_ptr(), $size);
}
});
}
impl ByteOrder for BigEndian {
#[inline]
fn read_u16(buf: &[u8]) -> u16 {
read_num_bytes!(u16, 2, buf, to_be)
}
#[inline]
fn read_u32(buf: &[u8]) -> u32 {
read_num_bytes!(u32, 4, buf, to_be)
}
#[inline]
fn read_u64(buf: &[u8]) -> u64 {
read_num_bytes!(u64, 8, buf, to_be)
}
#[inline]
fn read_uint(buf: &[u8], nbytes: usize) -> u64 {
assert!(1 <= nbytes && nbytes <= 8 && nbytes <= buf.len());
let mut out = [0u8; 8];
let ptr_out = out.as_mut_ptr();
unsafe {
copy_nonoverlapping(
buf.as_ptr(), ptr_out.offset((8 - nbytes) as isize), nbytes);
(*(ptr_out as *const u64)).to_be()
}
}
#[inline]
fn write_u16(buf: &mut [u8], n: u16) {
write_num_bytes!(u16, 2, n, buf, to_be);
}
#[inline]
fn write_u32(buf: &mut [u8], n: u32) {
write_num_bytes!(u32, 4, n, buf, to_be);
}
#[inline]
fn write_u64(buf: &mut [u8], n: u64) {
write_num_bytes!(u64, 8, n, buf, to_be);
}
#[inline]
fn write_uint(buf: &mut [u8], n: u64, nbytes: usize) {
assert!(pack_size(n) <= nbytes && nbytes <= 8);
assert!(nbytes <= buf.len());
unsafe {
let bytes: [u8; 8] = transmute(n.to_be());
copy_nonoverlapping(
bytes.as_ptr().offset((8 - nbytes) as isize),
buf.as_mut_ptr(),
nbytes);
}
}
}
impl ByteOrder for LittleEndian {
#[inline]
fn read_u16(buf: &[u8]) -> u16 {
read_num_bytes!(u16, 2, buf, to_le)
}
#[inline]
fn read_u32(buf: &[u8]) -> u32 {
read_num_bytes!(u32, 4, buf, to_le)
}
#[inline]
fn read_u64(buf: &[u8]) -> u64 {
read_num_bytes!(u64, 8, buf, to_le)
}
#[inline]
fn read_uint(buf: &[u8], nbytes: usize) -> u64 {
assert!(1 <= nbytes && nbytes <= 8 && nbytes <= buf.len());
let mut out = [0u8; 8];
let ptr_out = out.as_mut_ptr();
unsafe {
copy_nonoverlapping(buf.as_ptr(), ptr_out, nbytes);
(*(ptr_out as *const u64)).to_le()
}
}
#[inline]
fn write_u16(buf: &mut [u8], n: u16) {
write_num_bytes!(u16, 2, n, buf, to_le);
}
#[inline]
fn write_u32(buf: &mut [u8], n: u32) {
write_num_bytes!(u32, 4, n, buf, to_le);
}
#[inline]
fn write_u64(buf: &mut [u8], n: u64) {
write_num_bytes!(u64, 8, n, buf, to_le);
}
#[inline]
fn write_uint(buf: &mut [u8], n: u64, nbytes: usize) {
assert!(pack_size(n as u64) <= nbytes && nbytes <= 8);
assert!(nbytes <= buf.len());
unsafe {
let bytes: [u8; 8] = transmute(n.to_le());
copy_nonoverlapping(bytes.as_ptr(), buf.as_mut_ptr(), nbytes);
}
}
}
#[cfg(test)]
mod test {
extern crate quickcheck;
extern crate rand;
use test::rand::thread_rng;
use test::quickcheck::{QuickCheck, StdGen, Testable};
const U64_MAX: u64 = ::std::u64::MAX;
const I64_MAX: u64 = ::std::i64::MAX as u64;
fn qc_sized<A: Testable>(f: A, size: u64) {
QuickCheck::new()
.gen(StdGen::new(thread_rng(), size as usize))
.tests(1_00)
.max_tests(10_000)
.quickcheck(f);
}
macro_rules! qc_byte_order {
($name:ident, $ty_int:ident, $max:expr,
$bytes:expr, $read:ident, $write:ident) => (
mod $name {
use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
use super::qc_sized;
#[test]
fn big_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut buf = [0; 8];
BigEndian::$write(&mut buf, n, $bytes);
n == BigEndian::$read(&mut buf[..$bytes], $bytes)
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
#[test]
fn little_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut buf = [0; 8];
LittleEndian::$write(&mut buf, n, $bytes);
n == LittleEndian::$read(&mut buf[..$bytes], $bytes)
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
#[test]
fn native_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut buf = [0; 8];
NativeEndian::$write(&mut buf, n, $bytes);
n == NativeEndian::$read(&mut buf[..$bytes], $bytes)
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
}
);
($name:ident, $ty_int:ident, $max:expr,
$read:ident, $write:ident) => (
mod $name {
use std::mem::size_of;
use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
use super::qc_sized;
#[test]
fn big_endian() {
fn prop(n: $ty_int) -> bool {
let bytes = size_of::<$ty_int>();
let mut buf = [0; 8];
BigEndian::$write(&mut buf[8 - bytes..], n);
n == BigEndian::$read(&mut buf[8 - bytes..])
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
#[test]
fn little_endian() {
fn prop(n: $ty_int) -> bool {
let bytes = size_of::<$ty_int>();
let mut buf = [0; 8];
LittleEndian::$write(&mut buf[..bytes], n);
n == LittleEndian::$read(&mut buf[..bytes])
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
#[test]
fn native_endian() {
fn prop(n: $ty_int) -> bool {
let bytes = size_of::<$ty_int>();
let mut buf = [0; 8];
NativeEndian::$write(&mut buf[..bytes], n);
n == NativeEndian::$read(&mut buf[..bytes])
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
}
);
}
qc_byte_order!(prop_u16, u16, ::std::u16::MAX as u64, read_u16, write_u16);
qc_byte_order!(prop_i16, i16, ::std::i16::MAX as u64, read_i16, write_i16);
qc_byte_order!(prop_u32, u32, ::std::u32::MAX as u64, read_u32, write_u32);
qc_byte_order!(prop_i32, i32, ::std::i32::MAX as u64, read_i32, write_i32);
qc_byte_order!(prop_u64, u64, ::std::u64::MAX as u64, read_u64, write_u64);
qc_byte_order!(prop_i64, i64, ::std::i64::MAX as u64, read_i64, write_i64);
qc_byte_order!(prop_f32, f32, ::std::u64::MAX as u64, read_f32, write_f32);
qc_byte_order!(prop_f64, f64, ::std::i64::MAX as u64, read_f64, write_f64);
qc_byte_order!(prop_uint_1, u64, super::U64_MAX, 1, read_uint, write_uint);
qc_byte_order!(prop_uint_2, u64, super::U64_MAX, 2, read_uint, write_uint);
qc_byte_order!(prop_uint_3, u64, super::U64_MAX, 3, read_uint, write_uint);
qc_byte_order!(prop_uint_4, u64, super::U64_MAX, 4, read_uint, write_uint);
qc_byte_order!(prop_uint_5, u64, super::U64_MAX, 5, read_uint, write_uint);
qc_byte_order!(prop_uint_6, u64, super::U64_MAX, 6, read_uint, write_uint);
qc_byte_order!(prop_uint_7, u64, super::U64_MAX, 7, read_uint, write_uint);
qc_byte_order!(prop_uint_8, u64, super::U64_MAX, 8, read_uint, write_uint);
qc_byte_order!(prop_int_1, i64, super::I64_MAX, 1, read_int, write_int);
qc_byte_order!(prop_int_2, i64, super::I64_MAX, 2, read_int, write_int);
qc_byte_order!(prop_int_3, i64, super::I64_MAX, 3, read_int, write_int);
qc_byte_order!(prop_int_4, i64, super::I64_MAX, 4, read_int, write_int);
qc_byte_order!(prop_int_5, i64, super::I64_MAX, 5, read_int, write_int);
qc_byte_order!(prop_int_6, i64, super::I64_MAX, 6, read_int, write_int);
qc_byte_order!(prop_int_7, i64, super::I64_MAX, 7, read_int, write_int);
qc_byte_order!(prop_int_8, i64, super::I64_MAX, 8, read_int, write_int);
macro_rules! qc_bytes_ext {
($name:ident, $ty_int:ident, $max:expr,
$bytes:expr, $read:ident, $write:ident) => (
mod $name {
use std::io::Cursor;
use {
ReadBytesExt, WriteBytesExt,
BigEndian, NativeEndian, LittleEndian,
};
use super::qc_sized;
#[test]
fn big_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<BigEndian>(n).unwrap();
let mut rdr = Vec::new();
rdr.extend(wtr[8 - $bytes..].iter().map(|&x|x));
let mut rdr = Cursor::new(rdr);
n == rdr.$read::<BigEndian>($bytes).unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
#[test]
fn little_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<LittleEndian>(n).unwrap();
let mut rdr = Cursor::new(wtr);
n == rdr.$read::<LittleEndian>($bytes).unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
#[test]
fn native_endian() {
let max = ($max - 1) >> (8 * (8 - $bytes));
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<NativeEndian>(n).unwrap();
let mut rdr = Cursor::new(wtr);
n == rdr.$read::<NativeEndian>($bytes).unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, max);
}
}
);
($name:ident, $ty_int:ident, $max:expr, $read:ident, $write:ident) => (
mod $name {
use std::io::Cursor;
use {
ReadBytesExt, WriteBytesExt,
BigEndian, NativeEndian, LittleEndian,
};
use super::qc_sized;
#[test]
fn big_endian() {
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<BigEndian>(n).unwrap();
let mut rdr = Cursor::new(wtr);
n == rdr.$read::<BigEndian>().unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
#[test]
fn little_endian() {
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<LittleEndian>(n).unwrap();
let mut rdr = Cursor::new(wtr);
n == rdr.$read::<LittleEndian>().unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
#[test]
fn native_endian() {
fn prop(n: $ty_int) -> bool {
let mut wtr = vec![];
wtr.$write::<NativeEndian>(n).unwrap();
let mut rdr = Cursor::new(wtr);
n == rdr.$read::<NativeEndian>().unwrap()
}
qc_sized(prop as fn($ty_int) -> bool, $max - 1);
}
}
);
}
qc_bytes_ext!(prop_ext_u16, u16, ::std::u16::MAX as u64, read_u16, write_u16);
qc_bytes_ext!(prop_ext_i16, i16, ::std::i16::MAX as u64, read_i16, write_i16);
qc_bytes_ext!(prop_ext_u32, u32, ::std::u32::MAX as u64, read_u32, write_u32);
qc_bytes_ext!(prop_ext_i32, i32, ::std::i32::MAX as u64, read_i32, write_i32);
qc_bytes_ext!(prop_ext_u64, u64, ::std::u64::MAX as u64, read_u64, write_u64);
qc_bytes_ext!(prop_ext_i64, i64, ::std::i64::MAX as u64, read_i64, write_i64);
qc_bytes_ext!(prop_ext_f32, f32, ::std::u64::MAX as u64, read_f32, write_f32);
qc_bytes_ext!(prop_ext_f64, f64, ::std::i64::MAX as u64, read_f64, write_f64);
qc_bytes_ext!(prop_ext_uint_1, u64, super::U64_MAX, 1, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_2, u64, super::U64_MAX, 2, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_3, u64, super::U64_MAX, 3, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_4, u64, super::U64_MAX, 4, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_5, u64, super::U64_MAX, 5, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_6, u64, super::U64_MAX, 6, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_7, u64, super::U64_MAX, 7, read_uint, write_u64);
qc_bytes_ext!(prop_ext_uint_8, u64, super::U64_MAX, 8, read_uint, write_u64);
qc_bytes_ext!(prop_ext_int_1, i64, super::I64_MAX, 1, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_2, i64, super::I64_MAX, 2, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_3, i64, super::I64_MAX, 3, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_4, i64, super::I64_MAX, 4, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_5, i64, super::I64_MAX, 5, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_6, i64, super::I64_MAX, 6, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_7, i64, super::I64_MAX, 7, read_int, write_i64);
qc_bytes_ext!(prop_ext_int_8, i64, super::I64_MAX, 8, read_int, write_i64);
// Test that all of the byte conversion functions panic when given a
// buffer that is too small.
//
// These tests are critical to ensure safety, otherwise we might end up
// with a buffer overflow.
macro_rules! too_small {
($name:ident, $maximally_small:expr, $zero:expr,
$read:ident, $write:ident) => (
mod $name {
use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
#[test]
#[should_panic]
fn read_big_endian() {
let buf = [0; $maximally_small];
BigEndian::$read(&buf);
}
#[test]
#[should_panic]
fn read_little_endian() {
let buf = [0; $maximally_small];
LittleEndian::$read(&buf);
}
#[test]
#[should_panic]
fn read_native_endian() {
let buf = [0; $maximally_small];
NativeEndian::$read(&buf);
}
#[test]
#[should_panic]
fn write_big_endian() {
let mut buf = [0; $maximally_small];
BigEndian::$write(&mut buf, $zero);
}
#[test]
#[should_panic]
fn write_little_endian() {
let mut buf = [0; $maximally_small];
LittleEndian::$write(&mut buf, $zero);
}
#[test]
#[should_panic]
fn write_native_endian() {
let mut buf = [0; $maximally_small];
NativeEndian::$write(&mut buf, $zero);
}
}
);
($name:ident, $maximally_small:expr, $read:ident) => (
mod $name {
use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
#[test]
#[should_panic]
fn read_big_endian() {
let buf = [0; $maximally_small];
BigEndian::$read(&buf, $maximally_small + 1);
}
#[test]
#[should_panic]
fn read_little_endian() {
let buf = [0; $maximally_small];
LittleEndian::$read(&buf, $maximally_small + 1);
}
#[test]
#[should_panic]
fn read_native_endian() {
let buf = [0; $maximally_small];
NativeEndian::$read(&buf, $maximally_small + 1);
}
}
);
}
too_small!(small_u16, 1, 0, read_u16, write_u16);
too_small!(small_i16, 1, 0, read_i16, write_i16);
too_small!(small_u32, 3, 0, read_u32, write_u32);
too_small!(small_i32, 3, 0, read_i32, write_i32);
too_small!(small_u64, 7, 0, read_u64, write_u64);
too_small!(small_i64, 7, 0, read_i64, write_i64);
too_small!(small_f32, 3, 0.0, read_f32, write_f32);
too_small!(small_f64, 7, 0.0, read_f64, write_f64);
too_small!(small_uint_1, 1, read_uint);
too_small!(small_uint_2, 2, read_uint);
too_small!(small_uint_3, 3, read_uint);
too_small!(small_uint_4, 4, read_uint);
too_small!(small_uint_5, 5, read_uint);
too_small!(small_uint_6, 6, read_uint);
too_small!(small_uint_7, 7, read_uint);
too_small!(small_int_1, 1, read_int);
too_small!(small_int_2, 2, read_int);
too_small!(small_int_3, 3, read_int);
too_small!(small_int_4, 4, read_int);
too_small!(small_int_5, 5, read_int);
too_small!(small_int_6, 6, read_int);
too_small!(small_int_7, 7, read_int);
#[test]
fn uint_bigger_buffer() {
use {ByteOrder, LittleEndian};
let n = LittleEndian::read_uint(&[1, 2, 3, 4, 5, 6, 7, 8], 5);
assert_eq!(n, 0x0504030201);
}
}

269
third_party/rust/byteorder/src/new.rs vendored Normal file
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@ -0,0 +1,269 @@
use std::io::{self, Result};
use ByteOrder;
/// Extends `Read` with methods for reading numbers. (For `std::io`.)
///
/// Most of the methods defined here have an unconstrained type parameter that
/// must be explicitly instantiated. Typically, it is instantiated with either
/// the `BigEndian` or `LittleEndian` types defined in this crate.
///
/// # Examples
///
/// Read unsigned 16 bit big-endian integers from a `Read`:
///
/// ```rust
/// use std::io::Cursor;
/// use byteorder::{BigEndian, ReadBytesExt};
///
/// let mut rdr = Cursor::new(vec![2, 5, 3, 0]);
/// assert_eq!(517, rdr.read_u16::<BigEndian>().unwrap());
/// assert_eq!(768, rdr.read_u16::<BigEndian>().unwrap());
/// ```
pub trait ReadBytesExt: io::Read {
/// Reads an unsigned 8 bit integer from the underlying reader.
///
/// Note that since this reads a single byte, no byte order conversions
/// are used. It is included for completeness.
#[inline]
fn read_u8(&mut self) -> Result<u8> {
let mut buf = [0; 1];
try!(self.read_exact(&mut buf));
Ok(buf[0])
}
/// Reads a signed 8 bit integer from the underlying reader.
///
/// Note that since this reads a single byte, no byte order conversions
/// are used. It is included for completeness.
#[inline]
fn read_i8(&mut self) -> Result<i8> {
let mut buf = [0; 1];
try!(self.read_exact(&mut buf));
Ok(buf[0] as i8)
}
/// Reads an unsigned 16 bit integer from the underlying reader.
#[inline]
fn read_u16<T: ByteOrder>(&mut self) -> Result<u16> {
let mut buf = [0; 2];
try!(self.read_exact(&mut buf));
Ok(T::read_u16(&buf))
}
/// Reads a signed 16 bit integer from the underlying reader.
#[inline]
fn read_i16<T: ByteOrder>(&mut self) -> Result<i16> {
let mut buf = [0; 2];
try!(self.read_exact(&mut buf));
Ok(T::read_i16(&buf))
}
/// Reads an unsigned 32 bit integer from the underlying reader.
#[inline]
fn read_u32<T: ByteOrder>(&mut self) -> Result<u32> {
let mut buf = [0; 4];
try!(self.read_exact(&mut buf));
Ok(T::read_u32(&buf))
}
/// Reads a signed 32 bit integer from the underlying reader.
#[inline]
fn read_i32<T: ByteOrder>(&mut self) -> Result<i32> {
let mut buf = [0; 4];
try!(self.read_exact(&mut buf));
Ok(T::read_i32(&buf))
}
/// Reads an unsigned 64 bit integer from the underlying reader.
#[inline]
fn read_u64<T: ByteOrder>(&mut self) -> Result<u64> {
let mut buf = [0; 8];
try!(self.read_exact(&mut buf));
Ok(T::read_u64(&buf))
}
/// Reads a signed 64 bit integer from the underlying reader.
#[inline]
fn read_i64<T: ByteOrder>(&mut self) -> Result<i64> {
let mut buf = [0; 8];
try!(self.read_exact(&mut buf));
Ok(T::read_i64(&buf))
}
/// Reads an unsigned n-bytes integer from the underlying reader.
#[inline]
fn read_uint<T: ByteOrder>(&mut self, nbytes: usize) -> Result<u64> {
let mut buf = [0; 8];
try!(self.read_exact(&mut buf[..nbytes]));
Ok(T::read_uint(&buf[..nbytes], nbytes))
}
/// Reads a signed n-bytes integer from the underlying reader.
#[inline]
fn read_int<T: ByteOrder>(&mut self, nbytes: usize) -> Result<i64> {
let mut buf = [0; 8];
try!(self.read_exact(&mut buf[..nbytes]));
Ok(T::read_int(&buf[..nbytes], nbytes))
}
/// Reads a IEEE754 single-precision (4 bytes) floating point number from
/// the underlying reader.
#[inline]
fn read_f32<T: ByteOrder>(&mut self) -> Result<f32> {
let mut buf = [0; 4];
try!(self.read_exact(&mut buf));
Ok(T::read_f32(&buf))
}
/// Reads a IEEE754 double-precision (8 bytes) floating point number from
/// the underlying reader.
#[inline]
fn read_f64<T: ByteOrder>(&mut self) -> Result<f64> {
let mut buf = [0; 8];
try!(self.read_exact(&mut buf));
Ok(T::read_f64(&buf))
}
}
/// All types that implement `Read` get methods defined in `ReadBytesExt`
/// for free.
impl<R: io::Read + ?Sized> ReadBytesExt for R {}
/// Extends `Write` with methods for writing numbers. (For `std::io`.)
///
/// Most of the methods defined here have an unconstrained type parameter that
/// must be explicitly instantiated. Typically, it is instantiated with either
/// the `BigEndian` or `LittleEndian` types defined in this crate.
///
/// # Examples
///
/// Write unsigned 16 bit big-endian integers to a `Write`:
///
/// ```rust
/// use byteorder::{BigEndian, WriteBytesExt};
///
/// let mut wtr = vec![];
/// wtr.write_u16::<BigEndian>(517).unwrap();
/// wtr.write_u16::<BigEndian>(768).unwrap();
/// assert_eq!(wtr, vec![2, 5, 3, 0]);
/// ```
pub trait WriteBytesExt: io::Write {
/// Writes an unsigned 8 bit integer to the underlying writer.
///
/// Note that since this writes a single byte, no byte order conversions
/// are used. It is included for completeness.
#[inline]
fn write_u8(&mut self, n: u8) -> Result<()> {
self.write_all(&[n])
}
/// Writes a signed 8 bit integer to the underlying writer.
///
/// Note that since this writes a single byte, no byte order conversions
/// are used. It is included for completeness.
#[inline]
fn write_i8(&mut self, n: i8) -> Result<()> {
self.write_all(&[n as u8])
}
/// Writes an unsigned 16 bit integer to the underlying writer.
#[inline]
fn write_u16<T: ByteOrder>(&mut self, n: u16) -> Result<()> {
let mut buf = [0; 2];
T::write_u16(&mut buf, n);
self.write_all(&buf)
}
/// Writes a signed 16 bit integer to the underlying writer.
#[inline]
fn write_i16<T: ByteOrder>(&mut self, n: i16) -> Result<()> {
let mut buf = [0; 2];
T::write_i16(&mut buf, n);
self.write_all(&buf)
}
/// Writes an unsigned 32 bit integer to the underlying writer.
#[inline]
fn write_u32<T: ByteOrder>(&mut self, n: u32) -> Result<()> {
let mut buf = [0; 4];
T::write_u32(&mut buf, n);
self.write_all(&buf)
}
/// Writes a signed 32 bit integer to the underlying writer.
#[inline]
fn write_i32<T: ByteOrder>(&mut self, n: i32) -> Result<()> {
let mut buf = [0; 4];
T::write_i32(&mut buf, n);
self.write_all(&buf)
}
/// Writes an unsigned 64 bit integer to the underlying writer.
#[inline]
fn write_u64<T: ByteOrder>(&mut self, n: u64) -> Result<()> {
let mut buf = [0; 8];
T::write_u64(&mut buf, n);
self.write_all(&buf)
}
/// Writes a signed 64 bit integer to the underlying writer.
#[inline]
fn write_i64<T: ByteOrder>(&mut self, n: i64) -> Result<()> {
let mut buf = [0; 8];
T::write_i64(&mut buf, n);
self.write_all(&buf)
}
/// Writes an unsigned n-bytes integer to the underlying writer.
///
/// If the given integer is not representable in the given number of bytes,
/// this method panics. If `nbytes > 8`, this method panics.
#[inline]
fn write_uint<T: ByteOrder>(
&mut self,
n: u64,
nbytes: usize,
) -> Result<()> {
let mut buf = [0; 8];
T::write_uint(&mut buf, n, nbytes);
self.write_all(&buf[0..nbytes])
}
/// Writes a signed n-bytes integer to the underlying writer.
///
/// If the given integer is not representable in the given number of bytes,
/// this method panics. If `nbytes > 8`, this method panics.
#[inline]
fn write_int<T: ByteOrder>(
&mut self,
n: i64,
nbytes: usize,
) -> Result<()> {
let mut buf = [0; 8];
T::write_int(&mut buf, n, nbytes);
self.write_all(&buf[0..nbytes])
}
/// Writes a IEEE754 single-precision (4 bytes) floating point number to
/// the underlying writer.
#[inline]
fn write_f32<T: ByteOrder>(&mut self, n: f32) -> Result<()> {
let mut buf = [0; 4];
T::write_f32(&mut buf, n);
self.write_all(&buf)
}
/// Writes a IEEE754 double-precision (8 bytes) floating point number to
/// the underlying writer.
#[inline]
fn write_f64<T: ByteOrder>(&mut self, n: f64) -> Result<()> {
let mut buf = [0; 8];
T::write_f64(&mut buf, n);
self.write_all(&buf)
}
}
/// All types that implement `Write` get methods defined in `WriteBytesExt`
/// for free.
impl<W: io::Write + ?Sized> WriteBytesExt for W {}