dtoa
====

[github](https://github.com/dtolnay/dtoa)
[crates.io](https://crates.io/crates/dtoa)
[docs.rs](https://docs.rs/dtoa)
[build status](https://github.com/dtolnay/dtoa/actions?query=branch%3Amaster)

This crate provides fast conversion of floating point primitives to decimal
strings. The implementation is a straightforward Rust port of [Milo Yip]'s C++
implementation [dtoa.h]. The original C++ code of each function is included in
comments.

See also [`itoa`] for printing integer primitives.

*Version requirement: rustc 1.36+*

[Milo Yip]: https://github.com/miloyip
[dtoa.h]: https://github.com/miloyip/rapidjson/blob/master/include/rapidjson/internal/dtoa.h
[`itoa`]: https://github.com/dtolnay/itoa

```toml
[dependencies]
dtoa = "1.0"
```


## Example

```rust
fn main() {
    let mut buffer = dtoa::Buffer::new();
    let printed = buffer.format(2.71828f64);
    assert_eq!(printed, "2.71828");
}
```


## Performance (lower is better)

![performance](https://raw.githubusercontent.com/dtolnay/dtoa/master/performance.png)

#### License

Licensed under either of Apache License, Version
2.0 or MIT license at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.

