facebook/fatal
Fatal is a library for fast prototyping software in modern C++. It provides facilities to enhance the expressive power of C++. The library is heavily based on template meta-programming, while keeping the complexity under-the-hood. observed · 2026-10-14
Health v2 · maintenance only
10/100
- Activity 94
- Release rhythm 83
- Longevity 100
Flags: archived no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 7.0
- age_days: 4424
- days_rel: 36
- days_push: 36
- n_releases_24m: 97
Adoption not part of the score
1018 stars · 159 forks observed · 2026-10-14
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Fatal (Facebook Template Library) is a header-only C++14 library for fast software prototyping, built heavily on template meta-programming to enhance C++'s expressive power. It also includes lessons and demos teaching meta-programming from beginner levels.
Use cases
- write template metaprograms in C++ without the boilerplate
- learn C++ template meta-programming from beginner lessons
- add compile-time utilities to a C++14 project
- prototype software quickly in modern C++
- benchmark and unit test metaprogramming code
When to choose
- you want a dependency-free, header-only C++ metaprogramming toolkit
- you're on a C++14-compliant Clang or GCC compiler
- you want to learn template meta-programming with guided examples
When to avoid
- your toolchain doesn't support C++14
- you need a stable API - master receives breaking changes without notice
- you prefer runtime libraries over compile-time abstractions
Facets
library · maturity maintenance
developer-tools type-system benchmarking testing developer-tools programming-languages cpp cross-platform windows template-metaprogramming header-only c++14 compile-time learning-resource algorithms linux macos
1 source
- readme: https://github.com/facebook/fatal · fetched 2026-10-14 · 69e63290df14
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| facebook/fatal | main | 10 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem