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Diffstat (limited to 'gcc/ada/a-colien.adb')
| -rw-r--r-- | gcc/ada/a-colien.adb | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gcc/ada/a-colien.adb b/gcc/ada/a-colien.adb new file mode 100644 index 00000000000..a4093f3551f --- /dev/null +++ b/gcc/ada/a-colien.adb @@ -0,0 +1,75 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- A D A . C O M M A N D _ L I N E . E N V I R O N M E N T -- +-- -- +-- B o d y -- +-- -- +-- $Revision: 1.2 $ -- +-- -- +-- Copyright (C) 1996-2001 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 2, 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. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +with System; +package body Ada.Command_Line.Environment is + + ----------------------- + -- Environment_Count -- + ----------------------- + + function Environment_Count return Natural is + function Env_Count return Natural; + pragma Import (C, Env_Count, "__gnat_env_count"); + + begin + return Env_Count; + end Environment_Count; + + ----------------------- + -- Environment_Value -- + ----------------------- + + function Environment_Value (Number : in Positive) return String is + procedure Fill_Env (E : System.Address; Env_Num : Integer); + pragma Import (C, Fill_Env, "__gnat_fill_env"); + + function Len_Env (Env_Num : Integer) return Integer; + pragma Import (C, Len_Env, "__gnat_len_env"); + + begin + if Number > Environment_Count then + raise Constraint_Error; + end if; + + declare + Env : aliased String (1 .. Len_Env (Number - 1)); + begin + Fill_Env (Env'Address, Number - 1); + return Env; + end; + end Environment_Value; + +end Ada.Command_Line.Environment; |