is_installed: Check if 'rkeops' is installed on the system
In rkeops: Kernel Operations on GPU or CPU, with Autodiff, without Memory Overflows

Description Usage Value Author(s) See Also

When running automatic tests without building and installing the package, i.e. with devtools::test(), the package file structure is different from the structure of a built and installed package (obtained with devtools::check()). For instance, the directory inst/include is replaced by include, or src by lib. Check functions inside rkeops have different behavior between these two cases.

The function is_installed checks the availability of the compiled function is_compiled(). If available, it means that rkeops is installed on the system.