leb128

读取和写入 DWARF 的 "Little Endian Base 128" (LEB128) 可变长度整数编码。

该实现是 DWARF 4 标准附录 C 中的伪代码的直接翻译。

安装

或者

$ cargo add leb128

将此添加到您的 Cargo.toml

[dependencies]
leb128 = "0.2.1"

示例

use leb128;

let mut buf = [0; 1024];

// Write to anything that implements `std::io::Write`.
{
    let mut writable = &mut buf[..];
    leb128::write::signed(&mut writable, -12345).expect("Should write number");
}

// Read from anything that implements `std::io::Read`.
let mut readable = &buf[..];
let val = leb128::read::signed(&mut readable).expect("Should read number");
assert_eq!(val, -12345);

文档

文档

LEB128 的读取-评估-打印-循环

该软件包包含一个 leb128-repl 程序，您可以在安装 cargo install leb128 后使用，或者通过在克隆的此存储库中运行 cargo run 来运行。

$ leb128-repl
LEB128 Read-Eval-Print-Loop!

Converts numbers to signed and unsigned LEB128 and displays the results in
base-10, hex, and binary.

> 42
# unsigned LEB128
[42]
[2a]
[00101010]

# signed LEB128
[42]
[2a]
[00101010]

> -42
# unsigned LEB128
error

# signed LEB128
[86]
[56]
[01010110]

> 9001
# unsigned LEB128
[169, 70]
[a9, 46]
[10101001, 01000110]

# signed LEB128
[169, 198, 0]
[a9, c6, 0]
[10101001, 11000110, 00000000]

> -9001
# unsigned LEB128
error

# signed LEB128
[215, 185, 127]
[d7, b9, 7f]
[11010111, 10111001, 01111111]

>

许可

许可方式为以下之一：

• Apache 许可证 2.0 (LICENSE-APACHE 或 https://www.apache.org/licenses/LICENSE-2.0)
• MIT 许可证 (LICENSE-MIT 或 https://opensource.org/licenses/MIT)

任选其一。

贡献

除非您明确声明，否则根据 Apache-2.0 许可证定义的任何有意提交以包含在作品中的贡献，均应按上述方式双许可，不附加任何额外条款或条件。