Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 68 insertions, 0 deletions

diff --git a/third_party/rust/minimal-lexical/src/lib.rs b/third_party/rust/minimal-lexical/src/lib.rs
new file mode 100644
index 0000000000..75f923475f
--- /dev/null
+++ b/third_party/rust/minimal-lexical/src/lib.rs
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+//! Fast, minimal float-parsing algorithm.
+//!
+//! minimal-lexical has a simple, high-level API with a single
+//! exported function: [`parse_float`].
+//!
+//! [`parse_float`] expects a forward iterator for the integer
+//! and fraction digits, as well as a parsed exponent as an [`i32`].
+//!
+//! For more examples, please see [simple-example](https://github.com/Alexhuszagh/minimal-lexical/blob/master/examples/simple.rs).
+//!
+//! EXAMPLES
+//! --------
+//!
+//! ```
+//! extern crate minimal_lexical;
+//!
+//! // Let's say we want to parse "1.2345".
+//! // First, we need an external parser to extract the integer digits ("1"),
+//! // the fraction digits ("2345"), and then parse the exponent to a 32-bit
+//! // integer (0).
+//! // Warning:
+//! // --------
+//! //  Please note that leading zeros must be trimmed from the integer,
+//! //  and trailing zeros must be trimmed from the fraction. This cannot
+//! //  be handled by minimal-lexical, since we accept iterators.
+//! let integer = b"1";
+//! let fraction = b"2345";
+//! let float: f64 = minimal_lexical::parse_float(integer.iter(), fraction.iter(), 0);
+//! println!("float={:?}", float);    // 1.235
+//! ```
+//!
+//! [`parse_float`]: fn.parse_float.html
+//! [`i32`]: https://doc.rust-lang.org/stable/std/primitive.i32.html
+
+// FEATURES
+
+// We want to have the same safety guarantees as Rust core,
+// so we allow unused unsafe to clearly document safety guarantees.
+#![allow(unused_unsafe)]
+#![cfg_attr(feature = "lint", warn(unsafe_op_in_unsafe_fn))]
+#![cfg_attr(not(feature = "std"), no_std)]
+
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+extern crate alloc;
+
+pub mod bellerophon;
+pub mod bigint;
+pub mod extended_float;
+pub mod fpu;
+pub mod heapvec;
+pub mod lemire;
+pub mod libm;
+pub mod mask;
+pub mod num;
+pub mod number;
+pub mod parse;
+pub mod rounding;
+pub mod slow;
+pub mod stackvec;
+pub mod table;
+
+mod table_bellerophon;
+mod table_lemire;
+mod table_small;
+
+// API
+pub use self::num::Float;
+pub use self::parse::parse_float;