Short version for non-lawyers:
`io-extras` is triple-licensed under Apache 2.0 with the LLVM Exception,
Apache 2.0, and MIT terms.
Longer version:
Copyrights in the `io-extras` project are retained by their contributors.
No copyright assignment is required to contribute to the `io-extras`
project.
Some files include code derived from Rust's `libstd`; see the comments in
the code for details.
Except as otherwise noted (below and/or in individual files), `io-extras`
is licensed under:
- the Apache License, Version 2.0, with the LLVM Exception
<LICENSE-Apache-2.0_WITH_LLVM-exception> or
<http://llvm.org/foundation/relicensing/LICENSE.txt>
- the Apache License, Version 2.0
<LICENSE-APACHE> or
<http://www.apache.org/licenses/LICENSE-2.0>,
- or the MIT license
<LICENSE-MIT> or
<http://opensource.org/licenses/MIT>,
at your option.