zufast: Fast Portable 'C' Primitives for Parsing and Formatting Data

A header-only library of small, fast, portable 'C99' primitives for converting external text and bytes into native values and back: correctly rounded number parsing (from 'fast_float', through its 'C' port 'ffc.h'), shortest round-trip number formatting (from 'Ryu'), ISO 8601 dates and timestamps, booleans, universally unique identifiers (UUIDs), hexadecimal and Base64, 'XXH3' hashing (from 'xxHash'), half-precision floats, endian helpers and UTF-8 validation. Other packages use it through 'LinkingTo' alone; the 'R' functions exist to test, benchmark and demonstrate the 'C' layer.

Version: 0.1.0
Depends: R (≥ 4.1)
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-10-21
DOI: 10.32614/CRAN.package.zufast (may not be active yet)
Author: Pedro Baltazar [aut, cre, cph], Bjoern Hoehrmann [cph] (UTF-8 decoder state table in inst/include/zufast/utf8.h), Daniel Lemire [cph] (fast_float, ported to C as ffc.h), João Paulo Magalhaes [cph] (fast_float, ported to C as ffc.h), The fast_float authors [cph] (fast_float, ported to C as ffc.h), Koleman Nix [cph] (ffc.h, the C port of fast_float), Ulf Adams [cph] (Ryu), Yann Collet [cph] (xxHash)
Maintainer: Pedro Baltazar <pedrobtz at gmail.com>
BugReports: https://github.com/pedrobtz/zufast/issues
License: MIT + file LICENSE
Copyright: See inst/COPYRIGHTS.
zufast copyright details
URL: https://pedrobtz.github.io/zufast/, https://github.com/pedrobtz/zufast
NeedsCompilation: yes
Materials: README, NEWS
CRAN checks: zufast results

Documentation:

Reference manual: zufast.html , zufast.pdf
Vignettes: Linking to zufast (source, R code)

Downloads:

Package source: zufast_0.1.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): zufast_0.1.0.tgz, r-oldrel (arm64): zufast_0.1.0.tgz, r-release (x86_64): zufast_0.1.0.tgz, r-oldrel (x86_64): zufast_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=zufast to link to this page.