Portable operating-system access predicates.
File path expansion: To ensure portability, all file paths are expanded before being handed to the backend Prolog system.
wall_time/1predicates are not supported.
command_line_arguments/1predicates are not supported.
pid/1predicate is not supported.
directory_files/2predicate is not supported.
shell/2predicate are not supported.
command_line_arguments/1predicate is not supported.