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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 . W W D _ C H A R --
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6 -- --
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7 -- B o d y --
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8 -- --
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131
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9 -- Copyright (C) 1992-2018, 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 package body System.WWd_Char is
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33
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34 --------------------------
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35 -- Wide_Width_Character --
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36 --------------------------
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37
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38 function Wide_Width_Character (Lo, Hi : Character) return Natural is
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39 W : Natural;
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40
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41 begin
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42 W := 0;
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43 for C in Lo .. Hi loop
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44 declare
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45 S : constant Wide_String := Character'Wide_Image (C);
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46 begin
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47 W := Natural'Max (W, S'Length);
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48 end;
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49 end loop;
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50
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51 return W;
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52 end Wide_Width_Character;
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53
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54 -------------------------------
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55 -- Wide_Wide_Width_Character --
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56 -------------------------------
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57
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58 function Wide_Wide_Width_Character (Lo, Hi : Character) return Natural is
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59 W : Natural;
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60
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61 begin
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62 W := 0;
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63 for C in Lo .. Hi loop
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64 declare
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65 S : constant String := Character'Image (C);
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66 begin
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67 W := Natural'Max (W, S'Length);
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68 end;
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69 end loop;
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70
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71 return W;
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72 end Wide_Wide_Width_Character;
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73
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74 end System.WWd_Char;
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