| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- G N A T . I O -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1995-2025, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- A simple preelaborable subset of Text_IO capabilities |
| |
| -- A simple text I/O package that can be used for simple I/O functions in |
| -- user programs as required. This package is also preelaborated, unlike |
| -- Text_IO, and can thus be with'ed by preelaborated library units. |
| |
| -- Note that Data_Error is not raised by these subprograms for bad data. |
| -- If such checks are needed then the regular Text_IO package must be used. |
| |
| package GNAT.IO is |
| pragma Preelaborate; |
| |
| type File_Type is limited private; |
| -- Specifies file to be used (the only possibilities are Standard_Output |
| -- and Standard_Error). There is no Create or Open facility that would |
| -- allow more general use of file names. |
| |
| function Standard_Output return File_Type; |
| function Standard_Error return File_Type; |
| -- These functions are the only way to get File_Type values |
| |
| procedure Get (X : out Integer); |
| procedure Get (C : out Character); |
| procedure Get_Line (Item : out String; Last : out Natural); |
| -- These routines always read from Standard_Input |
| |
| procedure Put (File : File_Type; X : Integer); |
| procedure Put (X : Integer); |
| -- Output integer to specified file, or to current output file, same |
| -- output as if Ada.Text_IO.Integer_IO had been instantiated for Integer. |
| |
| procedure Put (File : File_Type; C : Character); |
| procedure Put (C : Character); |
| -- Output character to specified file, or to current output file |
| |
| procedure Put (File : File_Type; S : String); |
| procedure Put (S : String); |
| -- Output string to specified file, or to current output file |
| |
| procedure Put_Line (File : File_Type; S : String); |
| procedure Put_Line (S : String); |
| -- Output string followed by new line to specified file, or to |
| -- current output file. |
| |
| procedure New_Line (File : File_Type; Spacing : Positive := 1); |
| procedure New_Line (Spacing : Positive := 1); |
| -- Output new line character to specified file, or to current output file |
| |
| procedure Set_Output (File : File_Type); |
| -- Set current output file, default is Standard_Output if no call to |
| -- Set_Output is made. |
| |
| private |
| type File_Type is (Stdout, Stderr); |
| -- Stdout = Standard_Output, Stderr = Standard_Error |
| |
| pragma Inline (Standard_Error); |
| pragma Inline (Standard_Output); |
| |
| end GNAT.IO; |
