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The Eisel-Lemire ParseNumberF64 Algorithm

nigeltao.github.io · published 7 October 2020

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Read the post at nigeltao.github.io Wayback capture
3blogs citing
First cited
29 Jan 2021
Most recent
19 Jan 2026
Rank this month
not ranked
Links from this post
24
Words captured
4,324

Cited by

Blog
In the post
Date
Russ Cox
Fast Unrounded Scaling: Proof by Ivy Read at the source ↗
19 Jan 2026
Russ Cox
Floating-Point Printing and Parsing Can Be Simple And Fast Read at the source ↗
19 Jan 2026
mensfeld.pl
Ruby Floats: When 2.6x Faster Is Actually Slower (and Then Faster Again) Read at the source ↗
19 Dec 2025
Daniel Lemire
Number Parsing at a Gigabyte per Second Read at the source ↗
29 Jan 2021

Links from this post

Link
Host
Fast float parsing in practice Read at the source ↗
lemire.me
https://github.com/lemire/fast_double_parser
github.com
https://en.wikipedia.org/wiki/Decimal_separator
en.wikipedia.org
ParseNumberF64 by Simple Decimal Conversion Read at the source ↗
nigeltao.github.io
https://en.wikipedia.org/wiki/Double-precision_floating-point_format
en.wikipedia.org
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER
developer.mozilla.org
https://en.wikipedia.org/wiki/Rounding
en.wikipedia.org
https://en.wikipedia.org/wiki/Static_single_assignment_form
en.wikipedia.org
https://www.felixcloutier.com/x86/mul
felixcloutier.com
https://github.com/google/wuffs/blob/ba3818cb6b473a2ed0b38ecfc07dbbd3a97e8ae7/internal/cgen/base/fundamental-public.h
github.com
https://github.com/lemire/fast_double_parser/issues/28
github.com
https://github.com/google/wuffs/blob/ba3818cb6b473a2ed0b38ecfc07dbbd3a97e8ae7/script/print-mpb-powers-of-10.go
github.com
https://github.com/lemire/fast_double_parser/blob/644bef4306059d3be01a04e77d3cc84b379c596f/include/fast_double_parser.h
github.com
https://github.com/google/wuffs/blob/ba3818cb6b473a2ed0b38ecfc07dbbd3a97e8ae7/internal/cgen/base/floatconv-submodule-data.c
github.com
https://en.wikipedia.org/wiki/Find_first_set
en.wikipedia.org
https://github.com/google/wuffs/blob/ba3818cb6b473a2ed0b38ecfc07dbbd3a97e8ae7/internal/cgen/base/floatconv-submodule-code.c
github.com
https://github.com/nigeltao/parse-number-fxx-test-data
github.com
https://github.com/google/double-conversion
github.com
https://github.com/ulfjack/ryu
github.com
https://golang.org/pkg/strconv/
golang.org
https://github.com/google/wuffs/blob/ba3818cb6b473a2ed0b38ecfc07dbbd3a97e8ae7/script/manual-test-parse-number-f64.cc
github.com
https://github.com/JuliaData/Parsers.jl/blob/589b9d0f80998ec284874b300da0932557d33513/src/floats.jl
github.com
https://github.com/ezrosent/frawk/blob/1b23207f09df441bea8bc5bc89ba2472b5176c51/src/runtime/float_parse/mod.rs
github.com
https://github.com/golang/go/blob/release-branch.go1.16/src/strconv/eisel_lemire.go
github.com