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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/rust/minimal-lexical/src/extended_float.rs | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/minimal-lexical/src/extended_float.rs')
-rw-r--r-- | third_party/rust/minimal-lexical/src/extended_float.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/third_party/rust/minimal-lexical/src/extended_float.rs b/third_party/rust/minimal-lexical/src/extended_float.rs new file mode 100644 index 0000000000..7397e199c8 --- /dev/null +++ b/third_party/rust/minimal-lexical/src/extended_float.rs @@ -0,0 +1,24 @@ +// FLOAT TYPE + +#![doc(hidden)] + +use crate::num::Float; + +/// Extended precision floating-point type. +/// +/// Private implementation, exposed only for testing purposes. +#[derive(Clone, Copy, Debug, PartialEq, Eq)] +pub struct ExtendedFloat { + /// Mantissa for the extended-precision float. + pub mant: u64, + /// Binary exponent for the extended-precision float. + pub exp: i32, +} + +/// Converts an `ExtendedFloat` to the closest machine float type. +#[inline(always)] +pub fn extended_to_float<F: Float>(x: ExtendedFloat) -> F { + let mut word = x.mant; + word |= (x.exp as u64) << F::MANTISSA_SIZE; + F::from_bits(word) +} |