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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- S Y S T E M . 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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131
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9 -- Copyright (C) 1995-2018, Free Software Foundation, Inc. --
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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 -- Common String access types and related subprograms
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33
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34 -- Note: this package is in the System hierarchy so that it can be directly
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35 -- be used by other predefined packages. User access to this package is via
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36 -- a renaming of this package in GNAT.String (file g-string.ads).
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37
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38 pragma Compiler_Unit_Warning;
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39
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40 with Ada.Unchecked_Deallocation;
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41
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42 package System.Strings is
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43 pragma Preelaborate;
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44
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45 type String_Access is access all String;
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46 -- General purpose string access type. Note that the caller is
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47 -- responsible for freeing allocated strings to avoid memory leaks.
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48
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49 procedure Free is new Ada.Unchecked_Deallocation
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50 (Object => String, Name => String_Access);
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51 -- This procedure is provided for freeing allocated values of type
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52 -- String_Access.
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53
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54 type String_List is array (Positive range <>) of String_Access;
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55 type String_List_Access is access all String_List;
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56 -- General purpose array and pointer for list of string accesses
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57
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58 procedure Free (Arg : in out String_List_Access);
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59 -- Frees the given array and all strings that its elements reference,
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60 -- and then sets the argument to null. Provided for freeing allocated
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61 -- values of this type.
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62
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63 end System.Strings;
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