1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2009 Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
34 -----------------------
35 -- Local Subprograms --
36 -----------------------
38 function V (T : Time_Stamp_Type; X : Time_Stamp_Index) return Nat;
39 -- Extract two decimal digit value from time stamp
45 function "<" (Left, Right : Time_Stamp_Type) return Boolean is
47 return not (Left = Right) and then String (Left) < String (Right);
54 function "<=" (Left, Right : Time_Stamp_Type) return Boolean is
56 return not (Left > Right);
63 function "=" (Left, Right : Time_Stamp_Type) return Boolean is
68 if String (Left) = String (Right) then
71 elsif Left (1) = ' ' or else Right (1) = ' ' then
75 -- In the following code we check for a difference of 2 seconds or less
77 -- Recall that the time stamp format is:
79 -- Y Y Y Y M M D D H H M M S S
80 -- 01 02 03 04 05 06 07 08 09 10 11 12 13 14
82 -- Note that we do not bother to worry about shifts in the day.
83 -- It seems unlikely that such shifts could ever occur in practice
84 -- and even if they do we err on the safe side, i.e., we say that the
85 -- time stamps are different.
87 Sright := V (Right, 13) + 60 * (V (Right, 11) + 60 * V (Right, 09));
88 Sleft := V (Left, 13) + 60 * (V (Left, 11) + 60 * V (Left, 09));
90 -- So the check is: dates must be the same, times differ 2 sec at most
92 return abs (Sleft - Sright) <= 2
93 and then String (Left (1 .. 8)) = String (Right (1 .. 8));
100 function ">" (Left, Right : Time_Stamp_Type) return Boolean is
102 return not (Left = Right) and then String (Left) > String (Right);
109 function ">=" (Left, Right : Time_Stamp_Type) return Boolean is
111 return not (Left < Right);
118 function Get_Char_Code (C : Character) return Char_Code is
120 return Char_Code'Val (Character'Pos (C));
127 function Get_Character (C : Char_Code) return Character is
129 pragma Assert (C <= 255);
130 return Character'Val (C);
137 subtype Wordh is Word range 0 .. 15;
138 Hex : constant array (Wordh) of Character := "0123456789abcdef";
140 function Get_Hex_String (W : Word) return Word_Hex_String is
142 WS : Word_Hex_String;
145 for J in reverse 1 .. 8 loop
146 WS (J) := Hex (X mod 16);
153 ------------------------
154 -- Get_Wide_Character --
155 ------------------------
157 function Get_Wide_Character (C : Char_Code) return Wide_Character is
159 pragma Assert (C <= 65535);
160 return Wide_Character'Val (C);
161 end Get_Wide_Character;
163 ------------------------
164 -- In_Character_Range --
165 ------------------------
167 function In_Character_Range (C : Char_Code) return Boolean is
170 end In_Character_Range;
172 -----------------------------
173 -- In_Wide_Character_Range --
174 -----------------------------
176 function In_Wide_Character_Range (C : Char_Code) return Boolean is
179 end In_Wide_Character_Range;
181 ---------------------
182 -- Make_Time_Stamp --
183 ---------------------
185 procedure Make_Time_Stamp
192 TS : out Time_Stamp_Type)
194 Z : constant := Character'Pos ('0');
197 TS (01) := Character'Val (Z + Year / 1000);
198 TS (02) := Character'Val (Z + (Year / 100) mod 10);
199 TS (03) := Character'Val (Z + (Year / 10) mod 10);
200 TS (04) := Character'Val (Z + Year mod 10);
201 TS (05) := Character'Val (Z + Month / 10);
202 TS (06) := Character'Val (Z + Month mod 10);
203 TS (07) := Character'Val (Z + Day / 10);
204 TS (08) := Character'Val (Z + Day mod 10);
205 TS (09) := Character'Val (Z + Hour / 10);
206 TS (10) := Character'Val (Z + Hour mod 10);
207 TS (11) := Character'Val (Z + Minutes / 10);
208 TS (12) := Character'Val (Z + Minutes mod 10);
209 TS (13) := Character'Val (Z + Seconds / 10);
210 TS (14) := Character'Val (Z + Seconds mod 10);
213 ----------------------
214 -- Split_Time_Stamp --
215 ----------------------
217 procedure Split_Time_Stamp
218 (TS : Time_Stamp_Type;
228 -- Y Y Y Y M M D D H H M M S S
229 -- 01 02 03 04 05 06 07 08 09 10 11 12 13 14
231 Year := 100 * V (TS, 01) + V (TS, 03);
235 Minutes := V (TS, 11);
236 Seconds := V (TS, 13);
237 end Split_Time_Stamp;
243 function V (T : Time_Stamp_Type; X : Time_Stamp_Index) return Nat is
245 return 10 * (Character'Pos (T (X)) - Character'Pos ('0')) +
246 Character'Pos (T (X + 1)) - Character'Pos ('0');