------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- G N A T . O S _ L I B -- -- -- -- S p e c -- -- -- -- Copyright (C) 1995-2019, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Operating system interface facilities -- This package contains types and procedures for interfacing to the -- underlying OS. It is used by the GNAT compiler and by tools associated -- with the GNAT compiler, and therefore works for the various operating -- systems to which GNAT has been ported. This package will undoubtedly grow -- as new services are needed by various tools. -- This package tends to use fairly low-level Ada in order to not bring in -- large portions of the RTL. For example, functions return access to string -- as part of avoiding functions returning unconstrained types. -- Except where specifically noted, these routines are portable across all -- GNAT implementations on all supported operating systems. -- See file s-os_lib.ads for full documentation of the interface with System.OS_Lib; package GNAT.OS_Lib renames System.OS_Lib;