[R-pkg-devel] Packages which use Fortran call "rwarn" for warnings?

Hello.

Would anyone know of a package which uses the rwarn subroutine, as
described in Writing R extensions 6.2.1, for error handling from
Fortran? I'm experimenting with it and getting overwhelmed with stack
errors and crashes, and could benefit from seeing it used properly.

Thank you,

Avi