Description:
Facebook Template Library
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Type: Formula
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Latest Version: 2025.12.15.00@0
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Tracked Since: Dec 17, 2025
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Links:
Homepage |
formulae.brew.sh
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Category: Developer tools
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Tags:
c++
metaprogramming
template-library
reflection
facebook
header-only
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Install:
brew install fatal
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About:
Fatal is a C++ template library developed by Facebook that provides advanced compile-time reflection, type manipulation, and functional programming utilities. It enables developers to write expressive, high-performance code by leveraging metaprogramming techniques to resolve logic at compile time. The library's main value proposition is reducing runtime overhead while increasing code clarity and type safety in complex systems.
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Key Features:
- Zero-cost abstractions for metaprogramming
- Compile-time type introspection and reflection
- Functional programming primitives (map, filter, reduce)
- String manipulation at compile time
- Seamless integration with modern C++ standards
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Use Cases:
- High-performance computing and low-latency systems
- Domain-specific language (DSL) creation within C++
- Serialization frameworks and RPC systems
- Template-heavy library development
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Alternatives:
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Boost.Hana
– Similar metaprogramming capabilities but with a different API design philosophy; Fatal is more focused on string processing and reflection
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Folly
– Broader Facebook C++ library collection; Fatal is a specialized component often used alongside it for metaprogramming needs
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