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Diffstat (limited to 'gcc/ada/libgnat/g-io.adb')
| -rw-r--r-- | gcc/ada/libgnat/g-io.adb | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/gcc/ada/libgnat/g-io.adb b/gcc/ada/libgnat/g-io.adb new file mode 100644 index 0000000..765d07f --- /dev/null +++ b/gcc/ada/libgnat/g-io.adb @@ -0,0 +1,191 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- G N A T . I O -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1995-2017, AdaCore -- +-- -- +-- 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 -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package body GNAT.IO is + + Current_Out : File_Type := Stdout; + pragma Atomic (Current_Out); + -- Current output file (modified by Set_Output) + + --------- + -- Get -- + --------- + + procedure Get (X : out Integer) is + function Get_Int return Integer; + pragma Import (C, Get_Int, "get_int"); + begin + X := Get_Int; + end Get; + + procedure Get (C : out Character) is + function Get_Char return Character; + pragma Import (C, Get_Char, "get_char"); + begin + C := Get_Char; + end Get; + + -------------- + -- Get_Line -- + -------------- + + procedure Get_Line (Item : out String; Last : out Natural) is + C : Character; + + begin + for Nstore in Item'Range loop + Get (C); + + if C = ASCII.LF then + Last := Nstore - 1; + return; + + else + Item (Nstore) := C; + end if; + end loop; + + Last := Item'Last; + end Get_Line; + + -------------- + -- New_Line -- + -------------- + + procedure New_Line (File : File_Type; Spacing : Positive := 1) is + begin + for J in 1 .. Spacing loop + Put (File, ASCII.LF); + end loop; + end New_Line; + + procedure New_Line (Spacing : Positive := 1) is + begin + New_Line (Current_Out, Spacing); + end New_Line; + + --------- + -- Put -- + --------- + + procedure Put (X : Integer) is + begin + Put (Current_Out, X); + end Put; + + procedure Put (File : File_Type; X : Integer) is + procedure Put_Int (X : Integer); + pragma Import (C, Put_Int, "put_int"); + + procedure Put_Int_Stderr (X : Integer); + pragma Import (C, Put_Int_Stderr, "put_int_stderr"); + + begin + case File is + when Stdout => Put_Int (X); + when Stderr => Put_Int_Stderr (X); + end case; + end Put; + + procedure Put (C : Character) is + begin + Put (Current_Out, C); + end Put; + + procedure Put (File : File_Type; C : Character) is + procedure Put_Char (C : Character); + pragma Import (C, Put_Char, "put_char"); + + procedure Put_Char_Stderr (C : Character); + pragma Import (C, Put_Char_Stderr, "put_char_stderr"); + + begin + case File is + when Stdout => Put_Char (C); + when Stderr => Put_Char_Stderr (C); + end case; + end Put; + + procedure Put (S : String) is + begin + Put (Current_Out, S); + end Put; + + procedure Put (File : File_Type; S : String) is + begin + for J in S'Range loop + Put (File, S (J)); + end loop; + end Put; + + -------------- + -- Put_Line -- + -------------- + + procedure Put_Line (S : String) is + begin + Put_Line (Current_Out, S); + end Put_Line; + + procedure Put_Line (File : File_Type; S : String) is + begin + Put (File, S); + New_Line (File); + end Put_Line; + + ---------------- + -- Set_Output -- + ---------------- + + procedure Set_Output (File : File_Type) is + begin + Current_Out := File; + end Set_Output; + + --------------------- + -- Standard_Output -- + --------------------- + + function Standard_Output return File_Type is + begin + return Stdout; + end Standard_Output; + + -------------------- + -- Standard_Error -- + -------------------- + + function Standard_Error return File_Type is + begin + return Stderr; + end Standard_Error; + +end GNAT.IO; |