annotate gcc/ada/libgnat/s-conca3.adb @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . C O N C A T _ 3 --
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6 -- --
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7 -- B o d y --
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8 -- --
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9 -- Copyright (C) 2008-2018, 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 pragma Compiler_Unit_Warning;
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33
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34 with System.Concat_2;
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35
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36 package body System.Concat_3 is
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37
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38 pragma Suppress (All_Checks);
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39
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40 ------------------
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41 -- Str_Concat_3 --
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42 ------------------
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43
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44 procedure Str_Concat_3 (R : out String; S1, S2, S3 : String) is
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45 F, L : Natural;
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46
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47 begin
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48 F := R'First;
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49 L := F + S1'Length - 1;
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50 R (F .. L) := S1;
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51
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52 F := L + 1;
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53 L := F + S2'Length - 1;
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54 R (F .. L) := S2;
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55
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56 F := L + 1;
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57 L := R'Last;
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58 R (F .. L) := S3;
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59 end Str_Concat_3;
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60
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61 -------------------------
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62 -- Str_Concat_Bounds_3 --
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63 -------------------------
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64
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65 procedure Str_Concat_Bounds_3
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66 (Lo, Hi : out Natural;
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67 S1, S2, S3 : String)
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68 is
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69 begin
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70 System.Concat_2.Str_Concat_Bounds_2 (Lo, Hi, S2, S3);
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71
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72 if S1 /= "" then
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73 Hi := S1'Last + Hi - Lo + 1;
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74 Lo := S1'First;
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75 end if;
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76 end Str_Concat_Bounds_3;
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77
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78 end System.Concat_3;