Read and Write Standard 'C' Types from Files, Connections and Raw Vectors R package ctypesio version 0.1.3 Interacting with binary files can be difficult because R's types are a subset of what is generally supported by 'C'. This package provides a suite of functions for reading and writing binary data (with files, connections, and raw vectors) using 'C' type descriptions. These functions convert data between 'C' types and R types while checking for values outside the type limits, 'NA' values, etc. Software Depends: R (>= 4.1.0) Suggests: knitr, rmarkdown, testthat (>= 3.0.0), jpeg Mike Cheng <mikefc@coolbutuseless.com> Comprehensive R Archive Network (CRAN) Mike Cheng [aut, cre, cph], Anne Fu [ctb] (Better UTF-8 support, ORCID: <https://orcid.org/0000-0002-9025-6071>) MIT + file LICENSE (https://CRAN.R-project.org/package=ctypesio/LICENSE) 2025-07-28 application/tgz https://CRAN.R-project.org/package=ctypesio doi:10.32614/CRAN.package.ctypesio