Add parse_float facilities#1
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This is a naive approach for a parse_float() that was implemented in Tokay already. See the comment in float.rs for details on how this isn't the best.
Still not equal to Rust's f64 literals, yet.
Still not perfect - the rounding glitches.
phorward
added
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phorward
marked this pull request as ready for review
July 20, 2026 14:05
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This pull request should add support for floating point numbers to the
num-parse-crate.The branch is already open for a while, and there is a problem with the precision, which shall be equal to the one reached by Rust directly.
The problem is this test, where
-1337.0e-298f64works but-1337.0e-299f64fails in precision (assertion left == right failed; left: Some(-1.3369999999999998e-296); right: Some(-1.337e-296))