object

# `os`

Portable operating-system access predicates.

Author: Paulo Moura
Version: 1.53
Date: 2019/5/7
Compilation flags:
`static, context_switching_calls`
Implements:
`public` osp
Uses:
list
Aliases:
`osp` `absolute_file_name/2` as `expand_path/2`
Remarks:

> - File path expansion: To ensure portability, all file paths are expanded before being handed to the backend Prolog system.

> - Missing implementations: A few predicates (e.g. `wall_time/1`) cannot be implemented in some backend Prolog systems.

- Public predicates

- Protected predicates

- Private predicates

- Operators

## Public predicates

(see entity ancestors)

## Protected predicates

(see entity ancestors)

## Private predicates

(see entity ancestors)

## Operators

(none)

See also

os_types