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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 . V A L _ L L D --
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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 with System.Val_Real; use System.Val_Real;
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33
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34 package body System.Val_LLD is
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35
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36 ----------------------------
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37 -- Scan_Long_Long_Decimal --
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38 ----------------------------
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39
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40 -- We use the floating-point circuit for now, this will be OK on a PC,
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41 -- but definitely does NOT have the required precision if the longest
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42 -- float type is IEEE double. This must be fixed in the future ???
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43
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44 function Scan_Long_Long_Decimal
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45 (Str : String;
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46 Ptr : not null access Integer;
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47 Max : Integer;
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48 Scale : Integer) return Long_Long_Integer
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49 is
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50 Val : Long_Long_Float;
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51 begin
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52 Val := Scan_Real (Str, Ptr, Max);
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53 return Long_Long_Integer (Val * 10.0 ** Scale);
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54 end Scan_Long_Long_Decimal;
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55
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56 -----------------------------
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57 -- Value_Long_Long_Decimal --
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58 -----------------------------
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59
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60 -- Again we cheat and use floating-point ???
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61
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62 function Value_Long_Long_Decimal
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63 (Str : String;
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64 Scale : Integer) return Long_Long_Integer
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65 is
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66 begin
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67 return Long_Long_Integer (Value_Real (Str) * 10.0 ** Scale);
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68 end Value_Long_Long_Decimal;
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69
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70 end System.Val_LLD;
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