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fuchsia / third_party / rust / 36790d28810ac188a8bca7fc9e95fe0869ae9a11
commit36790d28810ac188a8bca7fc9e95fe0869ae9a11[log] [tgz]
authorTrevor Gross <tmgross@umich.edu>Mon Feb 24 22:29:37 2025 -0500
committerTrevor Gross <tmgross@umich.edu>Tue May 13 22:08:18 2025 +0000
tree0641cea7f865e18c76578c5053f08cc75b28f839
parent414482f6a0d4e7290f614300581a0b55442552a3 [diff]
Initial implementation of `core_float_math`

Since [1], `compiler-builtins` makes a certain set of math symbols
weakly available on all platforms. This means we can begin exposing some
of the related functions in `core`, so begin this process here.

It is not possible to provide inherent methods in both `core` and `std`
while giving them different stability gates, so standalone functions are
added instead. This provides a way to experiment with the functionality
while unstable; once it is time to stabilize, they can be converted to
inherent.

For `f16` and `f128`, everything is unstable so we can move the inherent
methods.

The following are included to start:

* floor
* ceil
* round
* round_ties_even
* trunc
* fract
* mul_add
* div_euclid
* rem_euclid
* powi
* sqrt
* abs_sub
* cbrt

These mirror the set of functions that we have in `compiler-builtins`
since [1].

Tracking issue: https://github.com/rust-lang/rust/issues/137578

[1]: https://github.com/rust-lang/compiler-builtins/pull/763
13 files changed
tree: 0641cea7f865e18c76578c5053f08cc75b28f839
  1. .github/
  2. compiler/
  3. library/
  4. LICENSES/
  5. src/
  6. tests/
  7. .clang-format
  8. .editorconfig
  9. .git-blame-ignore-revs
  10. .gitattributes
  11. .gitignore
  12. .gitmodules
  13. .ignore
  14. .mailmap
  15. bootstrap.example.toml
  16. Cargo.lock
  17. Cargo.toml
  18. CODE_OF_CONDUCT.md
  19. configure
  20. CONTRIBUTING.md
  21. COPYRIGHT
  22. INSTALL.md
  23. LICENSE-APACHE
  24. license-metadata.json
  25. LICENSE-MIT
  26. README.md
  27. RELEASES.md
  28. REUSE.toml
  29. rust-bors.toml
  30. rustfmt.toml
  31. triagebot.toml
  32. x
  33. x.ps1
  34. x.py
README.md

Website | Getting started | Learn | Documentation | Contributing

This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

Why Rust?

  • Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.

  • Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.

  • Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).

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Read “Installation” from The Book.

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If you really want to install from source (though this is not recommended), see INSTALL.md.

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See CONTRIBUTING.md.

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See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.

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If you want to use these names or brands, please read the Rust language trademark policy.

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