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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 . B O U N D E D _ S T R I N G S --
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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) 2016-2018, AdaCore --
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111
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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 very simple implentation of bounded strings, used by tracebacks
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33
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34 package System.Bounded_Strings is
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35 type Bounded_String (Max_Length : Natural) is limited private;
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36 -- A string whose length is bounded by Max_Length. The bounded string is
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37 -- empty at initialization.
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38
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39 procedure Append (X : in out Bounded_String; C : Character);
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40 procedure Append (X : in out Bounded_String; S : String);
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41 -- Append a character or a string to X. If the bounded string is full,
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42 -- extra characters are simply dropped.
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43
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44 function To_String (X : Bounded_String) return String;
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45 function "+" (X : Bounded_String) return String renames To_String;
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46 -- Convert to a normal string
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47
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48 procedure Append_Address (X : in out Bounded_String; A : Address);
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49 -- Append an address to X
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50
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51 function Is_Full (X : Bounded_String) return Boolean;
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52 -- Return True iff X is full and any character or string will be dropped
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53 -- if appended.
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54 private
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55 type Bounded_String (Max_Length : Natural) is limited record
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56 Length : Natural := 0;
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57 -- Current length of the string
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58
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59 Chars : String (1 .. Max_Length);
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60 -- String content
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61 end record;
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62 end System.Bounded_Strings;
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