mirror of https://github.com/vee1e/flatbuffers - FlatBuffers: Memory Efficient Serialization Library
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Stefan F. 95ff1f1d80
[c#] Fix Table __vector_as_array correct len calc (#8911)
* fix for https://github.com/google/flatbuffers/issues/8759
__vector_as_array<T> calling ByteBuffer.ToArray<T> with the length in bytes by multiplying len with ByteBuffer.Sizeof<T> and FlatBuffersExampleTests extended to call GetVectorOfLongsArray/GetVectorOfDoublesArray which failed without the fix

* first try to repair build-dotnet-windows

* syntax error fixed

* Update solution creation command in build workflow

add --format sln to the dotnet new command, maybe it is currently creating a .slnx instead?
2026-02-04 13:13:01 +01:00
.bazelci [Swift] Bump minimum supported version of swift to 5.10 (#8758) 2025-11-14 15:07:49 -08:00
.github [c#] Fix Table __vector_as_array correct len calc (#8911) 2026-02-04 13:13:01 +01:00
android FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
bazel
benchmarks Run clang-format -i **/*.cpp (#8865) 2025-12-19 10:42:57 -08:00
CMake Remove invalid dependency on FLATBUFFERS_GENERATE_HEADERS_SCHEMAS (#8834) 2025-12-22 02:25:14 +00:00
dart FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
docs [Python] Improve python API (#8781) 2026-01-21 01:01:20 +00:00
examples/go-echo bulk code format fix (#8707) 2025-09-23 21:50:27 -07:00
go fix(go): add bounds checking to ByteVector (#8776) 2025-12-21 20:25:30 +00:00
goldens [Python] Improve python API (#8781) 2026-01-21 01:01:20 +00:00
grpc FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
include [C++] Check for case insensitive keywords (#8420) 2026-01-20 16:06:07 -08:00
java FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
js docs: clean up whitespace and fix typo in tutorial.md (#8695) 2025-09-25 09:02:22 -07:00
kotlin Upgrade Kotlin to MacOS 15 (#8845) 2025-12-14 13:28:24 -05:00
lobster
lua
mjs docs: clean up whitespace and fix typo in tutorial.md (#8695) 2025-09-25 09:02:22 -07:00
net/FlatBuffers [c#] Fix Table __vector_as_array correct len calc (#8911) 2026-02-04 13:13:01 +01:00
nim
php
python [Python] Improve python API (#8781) 2026-01-21 01:01:20 +00:00
reflection
rust FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
samples C++ Feature: Mutable union getters (#8852) 2025-12-21 17:36:47 -05:00
scripts [Python] Improve python API (#8781) 2026-01-21 01:01:20 +00:00
snap
src [Python] Improve python API (#8781) 2026-01-21 01:01:20 +00:00
swift [Swift] Fixes bazel.build file allowing it to find Vectors folder in 8.5.0 (#8875) 2025-12-21 21:22:49 +00:00
tests [c#] Fix Table __vector_as_array correct len calc (#8911) 2026-02-04 13:13:01 +01:00
ts [TS] Flexbuffers root vector fix (#8847) 2025-12-14 22:59:27 +01:00
.bazelignore Test external modules explicitly in CI (#8507) 2025-01-23 23:04:06 +00:00
.bazelrc Bump the versions of all aspect Bazel dependencies (#8508) 2025-01-24 10:09:22 -08:00
.clang-format Use the Google Style for clang-format without exceptions (#8706) 2025-09-23 21:19:33 -07:00
.clang-tidy
.editorconfig
.gitattributes
.gitignore Default Vector Support C++ (#8870) 2025-12-19 14:32:51 -08:00
.npmrc
BUILD.bazel Remove Bazel WORKSPACE setup. (#8509) 2025-01-24 18:16:10 +00:00
build_defs.bzl Default Vector Support C++ (#8870) 2025-12-19 14:32:51 -08:00
CHANGELOG.md FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
CMakeLists.txt Default Vector Support C++ (#8870) 2025-12-19 14:32:51 -08:00
composer.json
CONTRIBUTING.md Fix docs: typo & dead link (#8826) 2025-12-05 20:31:04 -05:00
eslint.config.mjs [TS] Upgrade deps (#8620) 2025-06-22 08:59:42 -07:00
extensions.bzl
FlatBuffers.podspec FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
Formatters.md docs: clean up whitespace and fix typo in tutorial.md (#8695) 2025-09-25 09:02:22 -07:00
library.json FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
LICENSE
MODULE.bazel MODULE.bazel: Upgrade rules_swift version (#8908) 2026-01-20 16:56:11 -08:00
package.json FlatBuffers Version 25.12.19 (#8871) 2025-12-19 15:06:07 -08:00
Package.swift [Swift] Bump minimum supported version of swift to 5.10 (#8758) 2025-11-14 15:07:49 -08:00
pnpm-lock.yaml Bump js-yaml in the npm_and_yarn group across 1 directory (#8779) 2025-11-27 11:50:31 +01:00
README.md docs: clean up whitespace and fix typo in tutorial.md (#8695) 2025-09-25 09:02:22 -07:00
SECURITY.md
swift.swiftformat [Swift] Flexbuffers native swift port (#8577) 2025-06-22 08:36:38 +02:00
tsconfig.json
tsconfig.mjs.json
typescript.bzl

logo FlatBuffers

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FlatBuffers is a cross platform serialization library architected for maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.

Quick Start

  1. Build the compiler for flatbuffers (flatc)

    Use cmake to create the build files for your platform and then perform the compilation (Linux example).

    cmake -G "Unix Makefiles"
    make -j
    
  2. Define your flatbuffer schema (.fbs)

    Write the schema to define the data you want to serialize. See monster.fbs for an example.

  3. Generate code for your language(s)

    Use the flatc compiler to take your schema and generate language-specific code:

    ./flatc --cpp --rust monster.fbs
    

    Which generates monster_generated.h and monster_generated.rs files.

  4. Serialize data

    Use the generated code, as well as the FlatBufferBuilder to construct your serialized buffer. (C++ example)

  5. Transmit/store/save Buffer

    Use your serialized buffer however you want. Send it to someone, save it for later, etc...

  6. Read the data

    Use the generated accessors to read the data from the serialized buffer.

    It doesn't need to be the same language/schema version, FlatBuffers ensures the data is readable across languages and schema versions. See the Rust example reading the data written by C++.

Documentation

Go to our landing page to browse our documentation.

Supported operating systems

  • Windows
  • macOS
  • Linux
  • Android
  • And any others with a recent C++ compiler (C++ 11 and newer)

Supported programming languages

Code generation and runtime libraries for many popular languages.

  1. C
  2. C++ - snapcraft.io
  3. C# - nuget.org
  4. Dart - pub.dev
  5. Go - go.dev
  6. Java - Maven
  7. JavaScript - NPM
  8. Kotlin
  9. Lobster
  10. Lua
  11. PHP
  12. Python - PyPI
  13. Rust - crates.io
  14. Swift - swiftpackageindex
  15. TypeScript - NPM
  16. Nim

Versioning

FlatBuffers does not follow traditional SemVer versioning (see rationale) but rather uses a format of the date of the release.

Contribution

To contribute to this project, see CONTRIBUTING.

Community

Security

Please see our Security Policy for reporting vulnerabilities.

Licensing

Flatbuffers is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.