fast_float Files

Implementation of the C++ from_chars functions for number types

This is an exact mirror of the fast_float project, hosted at https://github.com/fastfloat/fast_float. SourceForge is not affiliated with fast_float.

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Name	Modified	Size	InfoDownloads / Week
Parent folder
fast_float.h	2026-09-15	181.2 kB	0
README.md	2026-09-15	1.3 kB	0
Version 8.3.0 source code.tar.gz	2026-09-15	143.4 kB	1
Version 8.3.0 source code.zip	2026-09-15	192.2 kB	0
Totals: 4 Items		518.1 kB	1

What's Changed

New chars_format::javascript format (ECMAScript DecimalLiteral): like JSON, but the integer part may be empty (.5) and the fractional part may be empty (5., 5.e3); leading zeros, inf and nan are rejected. https://github.com/fastfloat/fast_float/pull/407
New chars_format::javascript_sloppy format: additionally accepts sloppy-mode NonOctalDecimalIntegerLiteral (08.5 is 8.5). A legacy octal literal (0775) is rejected with the new parse_error::legacy_octal_integer_part so it can be parsed in base 8.
Faster integer-part scanning (4-digit SWAR on GCC) and skipping the rounding-mode probe for long mantissas by @fcostaoliveira in https://github.com/fastfloat/fast_float/pull/398
Avoid old-style casts by @lemire in https://github.com/fastfloat/fast_float/pull/405
Fix compatibility with min()/max() macros by @dg0yt in https://github.com/fastfloat/fast_float/pull/399
Guard is_space against negative signed code units by @sahvx655-wq in https://github.com/fastfloat/fast_float/pull/395
docs: fix strtod function name in README by @latent-9 in https://github.com/fastfloat/fast_float/pull/404

Full Changelog: https://github.com/fastfloat/fast_float/compare/v8.2.10...v8.3.0

Source: README.md, updated 2026-09-15

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