a15c8c9a3d
Splitting into different source files by float size doesn't have any benefit when the only content is a small function that forwards to the generic implementation. Combine the source files for all width versions of: * ceil * copysign * fabs * fdim * floor * fmaximum * fmaximum_num * fminimum * fminimum_num * ldexp * scalbn * sqrt * truc fmod is excluded to avoid conflicts with an open PR. As part of this change move unit tests out of the generic module, instead testing the type-specific functions (e.g. `ceilf16` rather than `ceil::<f16>()`). This ensures that unit tests are validating whatever we expose, such as arch-specific implementations via `select_implementation!`, which would otherwise be skipped. (They are still covered by integration tests).
libm
A port of MUSL's libm to Rust.
Goals
The short term goal of this library is to enable math support (e.g. sin, atan2) for the
wasm32-unknown-unknown target (cf. rust-lang/compiler-builtins). The longer
term goal is to enable math support in the core crate.
Already usable
This crate is on crates.io and can be used today in stable #![no_std] programs.
The API documentation can be found here.
Benchmark
The benchmarks are located in crates/libm-bench and require a nightly Rust toolchain.
To run all benchmarks:
cargo +nightly bench --all
Contributing
Please check CONTRIBUTING.md
Minimum Rust version policy
This crate supports rustc 1.63 and newer.
License
Usage is licensed under the MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT).
Contribution
Contributions are licensed under both the MIT license and the Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0). Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as mentioned, without any additional terms or conditions.
See LICENSE.txt for full details.