The twenty-first release of the qlcal package arrivied at CRAN just now, and has been built for r2u. It comes a week after the 0.1.2 release.
qlcal delivers the calendaring parts of QuantLib. It is provided (for the R package) as a set of included files, so the package is self-contained and does not depend on an external QuantLib library (which can be demanding to build). qlcal covers over seventy country / market calendars and can compute holiday lists, its complement (i.e. business day lists) and much more. Examples are in the README at the repository, the package page, and course at the CRAN package page.
This releases includes a one-line fix we also sent upstream as a
now-merged PR: one of the calendar files added in QuantLib 1.43 also
needed to include the vector header file. And every
compiler appears to be lenient (QuantLib itself has fourty different
continuous integration jobs, we test with all builds at r-universe)
apart from the CRAN macOS x86-64 machine. Sigh. This is now fixed. We
also included a neat little local trick I should blog about: if the
build is detected as a non-CRAN local build (simply by checking for a
.git directory) then compiler flags can be updated to
quieten the build. We cannot do that in the package because we would get
our fingers slapped over so-called ‘non-portable compiler flags’. Sigh
again. Anyway, the trick helps.
The full details from NEWS.Rd follow.
Changes in version 0.1.3 (2026-07-21)
Add missing 'vector' header to new IslamicHolidays calendar file, also PRed upstream and merged there
In local compilation out of git repo add additional compiler flags
Courtesy of my CRANberries, there is a diffstat report for this release. See the project page and package documentation for more details, and more examples.
This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. If you like this or other open-source work I do, you can sponsor me at GitHub.