git://gcc.gnu.org / gcc.git / blame
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3 | -- GNAT RUNTIME COMPONENTS -- | |
| 4 | -- -- | |
| 5 | -- G N A T . I O -- | |
| 6 | -- -- | |
| 7 | -- S p e c -- | |
| 8 | -- -- | |
| bcea76b6 | 9 | -- Copyright (C) 1995-2002 Ada Core Technologies, Inc. -- |
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10 | -- -- |
| 11 | -- GNAT is free software; you can redistribute it and/or modify it under -- | |
| 12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 13 | -- ware Foundation; either version 2, or (at your option) any later ver- -- | |
| 14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| 15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 16 | -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- | |
| 17 | -- for more details. You should have received a copy of the GNU General -- | |
| 18 | -- Public License distributed with GNAT; see file COPYING. If not, write -- | |
| 19 | -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- | |
| 20 | -- MA 02111-1307, USA. -- | |
| 21 | -- -- | |
| 22 | -- As a special exception, if other files instantiate generics from this -- | |
| 23 | -- unit, or you link this unit with other files to produce an executable, -- | |
| 24 | -- this unit does not by itself cause the resulting executable to be -- | |
| 25 | -- covered by the GNU General Public License. This exception does not -- | |
| 26 | -- however invalidate any other reasons why the executable file might be -- | |
| 27 | -- covered by the GNU Public License. -- | |
| 28 | -- -- | |
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29 | -- GNAT was originally developed by the GNAT team at New York University. -- |
| 30 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
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31 | -- -- |
| 32 | ------------------------------------------------------------------------------ | |
| 33 | ||
| 34 | -- A simple preelaborable subset of Text_IO capabilities | |
| 35 | ||
| 36 | -- A simple text I/O package that can be used for simple I/O functions in | |
| 37 | -- user programs as required. This package is also preelaborated, unlike | |
| 07fc65c4 | 38 | -- Text_IO, and can thus be with'ed by preelaborated library units. |
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39 | |
| 40 | -- Note that Data_Error is not raised by these subprograms for bad data. | |
| 07fc65c4 | 41 | -- If such checks are needed then the regular Text_IO package must be used. |
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42 | |
| 43 | package GNAT.IO is | |
| 44 | pragma Preelaborate (IO); | |
| 45 | ||
| 46 | type File_Type is limited private; | |
| 47 | -- Specifies file to be used (the only possibilities are Standard_Output | |
| 48 | -- and Standard_Error). There is no Create or Open facility that would | |
| 49 | -- allow more general use of file names. | |
| 50 | ||
| 51 | function Standard_Output return File_Type; | |
| 52 | function Standard_Error return File_Type; | |
| 53 | -- These functions are the only way to get File_Type values | |
| 54 | ||
| 55 | procedure Get (X : out Integer); | |
| 56 | procedure Get (C : out Character); | |
| bcea76b6 | 57 | procedure Get_Line (Item : out String; Last : out Natural); |
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58 | -- These routines always read from Standard_Input |
| 59 | ||
| 60 | procedure Put (File : File_Type; X : Integer); | |
| 61 | procedure Put (X : Integer); | |
| 62 | -- Output integer to specified file, or to current output file, same | |
| 63 | -- output as if Ada.Text_IO.Integer_IO had been instantiated for Integer. | |
| 64 | ||
| 65 | procedure Put (File : File_Type; C : Character); | |
| 66 | procedure Put (C : Character); | |
| 67 | -- Output character to specified file, or to current output file | |
| 68 | ||
| 69 | procedure Put (File : File_Type; S : String); | |
| 70 | procedure Put (S : String); | |
| 71 | -- Output string to specified file, or to current output file | |
| 72 | ||
| 73 | procedure Put_Line (File : File_Type; S : String); | |
| 74 | procedure Put_Line (S : String); | |
| 75 | -- Output string followed by new line to specified file, or to | |
| 76 | -- current output file. | |
| 77 | ||
| 78 | procedure New_Line (File : File_Type; Spacing : Positive := 1); | |
| 79 | procedure New_Line (Spacing : Positive := 1); | |
| 80 | -- Output new line character to specified file, or to current output file | |
| 81 | ||
| 82 | procedure Set_Output (File : File_Type); | |
| 83 | -- Set current output file, default is Standard_Output if no call to | |
| 84 | -- Set_Output is made. | |
| 85 | ||
| 86 | private | |
| 87 | type File_Type is (Stdout, Stderr); | |
| 88 | -- Stdout = Standard_Output, Stderr = Standard_Error | |
| 89 | ||
| 90 | pragma Inline (Standard_Error); | |
| 91 | pragma Inline (Standard_Output); | |
| 92 | ||
| 93 | end GNAT.IO; |