Cross platform code with no dependencies - C++ code will work with any recent gcc/clang and VS2010.Java, Kotlin and Go code supports object-reuse.
Then there's optional functionality for parsing schemas and JSON-like text representations at runtime efficiently if needed (faster and more memory efficient than other JSON parsers). Useful code can be generated for you.Ĭonvenient to use - Generated C++ code allows for terse access & construction code.
Strongly typed - Errors happen at compile time rather than manually having to write repetitive and error prone run-time checks.Again, see the benchmark section for details. Tiny code footprint - Small amounts of generated code, and just a single small header as the minimum dependency, which is very easy to integrate.It also means you have a lot of choice in what data you write and what data you don't, and how you design data structures. Flexible - Optional fields means not only do you get great forwards and backwards compatibility (increasingly important for long-lived games: don't have to update all data with each new version!).It is aimed at projects where spending time and space (many memory allocations) to be able to access or construct serialized data is undesirable, such as in games or any other performance sensitive applications. Access is close to the speed of raw struct access with only one extra indirection (a kind of vtable) to allow for format evolution and optional fields. FlatBuffers is also very suitable for use with mmap (or streaming), requiring only part of the buffer to be in memory. It requires 0 additional allocations (in C++, other languages may vary). Memory efficiency and speed - The only memory needed to access your data is that of the buffer.Access to serialized data without parsing/unpacking - What sets FlatBuffers apart is that it represents hierarchical data in a flat binary buffer in such a way that it can still be accessed directly without parsing/unpacking, while also still supporting data structure evolution (forwards/backwards compatibility).It is available as Open Source on GitHub under the Apache license, v2 (see LICENSE.txt). It was originally created at Google for game development and other performance-critical applications. FlatBuffers is an efficient cross platform serialization library for C++, C#, C, Go, Java, Kotlin, JavaScript, Lobster, Lua, TypeScript, PHP, Python, Rust and Swift.
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