1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- S Y S T E M . I M G _ I N T -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- 10-- -- 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. -- 17-- -- 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. -- 21-- -- 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/>. -- 26-- -- 27-- GNAT was originally developed by the GNAT team at New York University. -- 28-- Extensive contributions were provided by Ada Core Technologies Inc. -- 29-- -- 30------------------------------------------------------------------------------ 31 32package body System.Img_Int is 33 34 ------------------- 35 -- Image_Integer -- 36 ------------------- 37 38 procedure Image_Integer 39 (V : Integer; 40 S : in out String; 41 P : out Natural) 42 is 43 pragma Assert (S'First = 1); 44 45 procedure Set_Digits (T : Integer); 46 -- Set digits of absolute value of T, which is zero or negative. We work 47 -- with the negative of the value so that the largest negative number is 48 -- not a special case. 49 50 ---------------- 51 -- Set_Digits -- 52 ---------------- 53 54 procedure Set_Digits (T : Integer) is 55 begin 56 if T <= -10 then 57 Set_Digits (T / 10); 58 P := P + 1; 59 S (P) := Character'Val (48 - (T rem 10)); 60 else 61 P := P + 1; 62 S (P) := Character'Val (48 - T); 63 end if; 64 end Set_Digits; 65 66 -- Start of processing for Image_Integer 67 68 begin 69 P := 1; 70 71 if V >= 0 then 72 S (P) := ' '; 73 Set_Digits (-V); 74 else 75 S (P) := '-'; 76 Set_Digits (V); 77 end if; 78 end Image_Integer; 79 80 ----------------------- 81 -- Set_Image_Integer -- 82 ----------------------- 83 84 procedure Set_Image_Integer 85 (V : Integer; 86 S : in out String; 87 P : in out Natural) 88 is 89 procedure Set_Digits (T : Integer); 90 -- Set digits of absolute value of T, which is zero or negative. We work 91 -- with the negative of the value so that the largest negative number is 92 -- not a special case. 93 94 ---------------- 95 -- Set_Digits -- 96 ---------------- 97 98 procedure Set_Digits (T : Integer) is 99 begin 100 if T <= -10 then 101 Set_Digits (T / 10); 102 P := P + 1; 103 S (P) := Character'Val (48 - (T rem 10)); 104 else 105 P := P + 1; 106 S (P) := Character'Val (48 - T); 107 end if; 108 end Set_Digits; 109 110 -- Start of processing for Set_Image_Integer 111 112 begin 113 if V >= 0 then 114 Set_Digits (-V); 115 else 116 P := P + 1; 117 S (P) := '-'; 118 Set_Digits (V); 119 end if; 120 end Set_Image_Integer; 121 122end System.Img_Int; 123