rust/library/compiler-builtins/libm
Jorge Aparicio 6454687134 omit bounds check in release mode
this eliminates panicking branches in the optimized version of the functions. We keep the bounds
checks when running the test suite to check that we never do an out of bounds access.

This commit also adds a "must link" test that ensures that future changes in our implementation
won't add panicking branches.

closes rust-lang/libm#129
2018-07-25 13:16:10 -05:00
..
cb test source importing this crate 2018-07-12 20:19:42 -05:00
ci omit bounds check in release mode 2018-07-25 13:16:10 -05:00
examples omit bounds check in release mode 2018-07-25 13:16:10 -05:00
src omit bounds check in release mode 2018-07-25 13:16:10 -05:00
test-generator Enable tests and expose 2018-07-17 15:08:22 -05:00
.gitignore initial commit 2018-07-12 00:44:28 -05:00
.travis.yml ci: don't test the master master 2018-07-14 12:20:10 -05:00
Cargo.toml omit bounds check in release mode 2018-07-25 13:16:10 -05:00
CHANGELOG.md v0.1.2 2018-07-18 11:48:47 -05:00
CONTRIBUTING.md Add some extra notes to CONTRIBUTING 2018-07-14 15:51:37 -04:00
LICENSE-APACHE initial commit 2018-07-12 00:44:28 -05:00
LICENSE-MIT initial commit 2018-07-12 00:44:28 -05:00
README.md README: all the math functions we needed are now supported 2018-07-21 12:01:49 -05:00

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-nursery/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 like this:

#![no_std]

extern crate libm;

use libm::F32Ext; // adds methods to `f32`

fn foo(x: f32) {
    let y = x.sqrt();
    let z = libm::truncf(x);
}

The API documentation can be found here.

Contributing

Please check CONTRIBUTING.md

License

Licensed under either of

at your option.

Contribution

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 above, without any additional terms or conditions.