Source-file copyright and license notices, preserved verbatim.

===== src/lexical/mod.rs (source SHA-256 ace2ccea2cd541f019a84b9eeb3b9ecd88daf6bccbe9edf0eac00b62704f47c4) =====
// The code in this module is derived from the `lexical` crate by @Alexhuszagh
// which the author condensed into this minimal subset for use in serde_json.
// For the serde_json use case we care more about reliably round tripping all
// possible floating point values than about parsing any arbitrarily long string
// of digits with perfect accuracy, as the latter would take a high cost in
// compile time and performance.
//
// Dual licensed as MIT and Apache 2.0 just like the rest of serde_json, but
// copyright Alexander Huszagh.
