Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

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+# `libm`
+
+[![Build Status](https://dev.azure.com/rust-lang/libm/_apis/build/status/rust-lang-nursery.libm?branchName=master)](https://dev.azure.com/rust-lang/libm/_build/latest?definitionId=7&branchName=master)
+
+A port of [MUSL]'s libm to Rust.
+
+[MUSL]: https://www.musl-libc.org/
+
+## Goals
+
+The short term goal of this library is to [enable math support (e.g. `sin`, `atan2`) for the
+`wasm32-unknown-unknown` target][wasm] (cf. [rust-lang-nursery/compiler-builtins][pr]). The longer
+term goal is to enable [math support in the `core` crate][core].
+
+[wasm]: https://github.com/rust-lang-nursery/libm/milestone/1
+[pr]: https://github.com/rust-lang-nursery/compiler-builtins/pull/248
+[core]: https://github.com/rust-lang-nursery/libm/milestone/2
+
+## Already usable
+
+This crate is [on crates.io] and can be used today in stable `#![no_std]` programs like this:
+
+[on crates.io]: https://crates.io/crates/libm
+
+``` rust
+#![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](https://docs.rs/libm).
+
+## Contributing
+
+Please check [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## License
+
+Licensed under either of
+
+- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
+  http://www.apache.org/licenses/LICENSE-2.0)
+- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+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.