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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- S Y S T E M _ I O --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 1992-2019, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNAT was originally developed by the GNAT team at New York University. --
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28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 -- A simple text I/O package, used for diagnostic output in the runtime,
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33 -- This package is also preelaborated, unlike Text_Io, and can thus be
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34 -- with'ed by preelaborated library units. It includes only Put routines
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35 -- for character, integer, string and a new line function
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36
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37 package System.IO is
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38 pragma Preelaborate;
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39
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40 procedure Put (X : Integer);
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41
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42 procedure Put (C : Character);
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43
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44 procedure Put (S : String);
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45 procedure Put_Line (S : String);
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46
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47 procedure New_Line (Spacing : Positive := 1);
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48
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49 type File_Type is limited private;
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50
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51 function Standard_Error return File_Type;
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52 function Standard_Output return File_Type;
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53
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54 procedure Set_Output (File : File_Type);
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55
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56 private
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57
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58 type File_Type is (Stdout, Stderr);
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59 -- Stdout = Standard_Output, Stderr = Standard_Error
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60
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61 pragma Inline (Standard_Error);
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62 pragma Inline (Standard_Output);
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63
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64 end System.IO;
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