| --- |
| license: apache-2.0 |
| language: |
| - en |
| tags: |
| - code |
| - c |
| - cpp |
| - pretraining |
| - programming |
| - tensorflow |
| - ffmpeg |
| - sqlite |
| - vma |
| - vulkan |
| size_categories: |
| - 100K<n<1M |
| pretty_name: Chef |
| --- |
| |
| # C, C++, and Docs Training Dataset |
|
|
| A massive, multi-format code and documentation corpus built from 30+ major open-source C/C++ repositories (including the Linux kernel, FFmpeg, SQLite, Git, Redis, and Vulkan/FreeType headers). |
|
|
| ## Dataset Structure |
|
|
| The dataset is processed using a sliding-window text chunking method (350-word chunks with a 50-word overlap) to preserve function boundaries, variable scopes, and multi-line logic blocks while maximizing long-range structural context. |
|
|
| Each record in the JSONL and Parquet shards contains: |
| - **`id`**: Unique identifier for the chunk. |
| - **`source`**: Originating source file path (`C_data.txt`, `Cpp.txt`, or `text.txt`). |
| - **`category`**: Content classification tag (`c`, `cpp`, or `docs`). |
| - **`chunk_index`**: Sequential index within the source file. |
| - **`content`**: Raw text block of source code or documentation. |
| |
| ## Corpus Breakdown |
| - **C Source Code (`C_data.txt`)**: ~5.5M lines of low-level systems code, headers, and core utilities. |
| - **C++ Source Code (`Cpp.txt`)**: ~1.3M lines of modern C++ templates, wrappers, and library implementations. |
| - **Documentation & Text (`text.txt`)**: ~8M lines of markdown files, specs, and configuration manuals. |
|
|
| ## License |
| Distributed under the **Apache-2.0** open-source license. |
