Binary package “r-cran-dotcall64” in ubuntu bionic

Enhanced Foreign Function Interface Supporting Long Vectors

 Provides .C64(), which is an enhanced version of .C() and .Fortran() from the
 foreign function interface. .C64() supports long vectors, arguments of type
 64-bit integer, and provides a mechanism to avoid unnecessary copies of
 read-only and write-only arguments. This makes it a convenient and fast
 interface to C/C++ and Fortran code.