| dyn.load | Foreign Function InterfaceLoad or unload DLLs (also known as shared objects), and test whether a C function or Fortran subroutine is available. |
| .Call | Modern Interfaces to VisualBasic.NET code Functions to pass R# objects to compiled VisualBasic.NET code that has been loaded into R#. |
| i32 | create an integer scalar value |
| string | |
| i64 | |
| f32 | |
| f64 |