Compute Fletcher Checksums (16, 32, and 64 Bit) R package fletcher version 0.1.0 Computes Fletcher's position-dependent checksum in 16-, 32-, and 64-bit widths. Fletcher's checksum, devised by John G. Fletcher, provides error-detection properties approaching a cyclic redundancy check at lower computational cost. Input is processed as little-endian words with the final partial word zero-padded, so results are reproducible across platforms. Software Suggests: tinytest Christos Longros <chris.longros@gmail.com> Comprehensive R Archive Network (CRAN) Christos Longros [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=fletcher/LICENSE) 2026-07-15 application/tgz https://CRAN.R-project.org/package=fletcher doi:10.32614/CRAN.package.fletcher