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High-performance systems engineer who builds foundational C/C++ libraries and iOS frameworks optimized for speed and efficiency.

High-performance JSON serializationiOS frameworks and componentsAudio and MIDI processingC/C++ benchmarking and profilingLow-level number conversionReal-time and embedded systems

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Active 6d ago

Yaoyuan Guo

Top 21%

@ibireme

Creator of yyjson, the fastest JSON library in C, and c_numconv_benchmark, a rigorous performance testing suite. Guo focuses on low-level optimization and measurement, with 41k+ stars across projects.

Yyjson. I wrote a fast JSON reader and writer in C.

c_numconv_benchmark. C/C++ number ↔︎ string benchmark

ibireme.github.com. My Github Pages

yyjson_benchmark. Benchmark JSON library performance in C/C++

SF2Piano. A Piano use Soundfont (very simple demo)

YYKeyboardManager. iOS utility class allows you to access keyboard view and track keyboard animation.

YYKit. I built a collection of ready-to-use components for iPhone app builders.

YYCache. I built a fast storage system for iPhone apps that keeps data readily available.

YYImage. Image framework for iOS to display/encode/decode animated WebP, APNG, GIF, and more.

YYCategories. A set of useful categories for Foundation and UIKit.

YYBenchmarkFFT. FFT Benchmark for iOS/OSX

tmp. my temporary files

yy_color_convertor. Convert color between RGB,HSL,HSB,CMYK,YUV,YIQ,XYZ,xyY,Lab,Luv,LCH ...

YYWebImage. Asynchronous image loading framework.

yy_music_base. Some old code...

YYAsyncLayer. iOS utility classes for asynchronous rendering and display.

YYModel. I made a faster way for iOS apps to handle data.

ViewHierarchy3D. I made a tool that shows your app's screen layout in 3D.

YYDispatchQueuePool. iOS utility class to manage global dispatch queue.

YYText. I made a text tool for iPhone apps that handles rich formatting smoothly.

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