https://github.com/asciphx/itoa

The fastest integer to ASCII. Only the fastest, not faster. WTF?(what the fuck!) Bullshit!
https://github.com/asciphx/itoa

Last synced: about 6 hours ago
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The fastest integer to ASCII. Only the fastest, not faster. WTF?(what the fuck!) Bullshit!

• Host: GitHub
• URL: https://github.com/asciphx/itoa
• Owner: asciphx
• License: agpl-3.0
• Created: 2023-02-10T17:23:26.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-31T01:21:44.000Z (10 months ago)
• Last Synced: 2023-12-31T23:29:59.552Z (10 months ago)
• Language: C
• Homepage:
• Size: 151 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README-zh_CN.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# itoa

宇宙中最快的整数到ASCII字符的转换。支持C++11。

    i2a.h    - 编程接口, c版本的头文件

    i2a.c    - c版本的源文件

    i2a.hpp  - C++版本的头文件

## 构建 (测试)

建议使用CMake进行源代码外构建。

```

mkdir build

cd build

cmake ..

cd ..

cmake --build ./build --config Release

./test

```

## 特征

- 无需高版本的c++, 性能会有约100%的提升

- 头文件与源文件分离, 无需过多的内联, 防止编译缓慢

- ![测试](./test.jpg)

## 说明

- C++版本详见[https://gitee.com/asciphx/Nod/blob/main/fc/include/hpp/i2a.hpp](https://gitee.com/asciphx/Nod/blob/main/fc/include/hpp/i2a.hpp)

## 详情(c++版本, Linux)

预测, 综合性能对比SSE大概如下

|Function |Time (ns)|Speedup|

|---------|--------:|------:|

|sse2     |    7.614| 25.51x|

|i2a      |    3.685| 53.15x|

|null     |    2.230| 87.09x|