| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- S Y S T E M . I M G _ I N T -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| package body System.Img_Int is |
| |
| ------------------- |
| -- Image_Integer -- |
| ------------------- |
| |
| procedure Image_Integer |
| (V : Integer; |
| S : in out String; |
| P : out Natural) |
| is |
| pragma Assert (S'First = 1); |
| |
| procedure Set_Digits (T : Integer); |
| -- Set digits of absolute value of T, which is zero or negative. We work |
| -- with the negative of the value so that the largest negative number is |
| -- not a special case. |
| |
| ---------------- |
| -- Set_Digits -- |
| ---------------- |
| |
| procedure Set_Digits (T : Integer) is |
| begin |
| if T <= -10 then |
| Set_Digits (T / 10); |
| P := P + 1; |
| S (P) := Character'Val (48 - (T rem 10)); |
| else |
| P := P + 1; |
| S (P) := Character'Val (48 - T); |
| end if; |
| end Set_Digits; |
| |
| -- Start of processing for Image_Integer |
| |
| begin |
| P := 1; |
| |
| if V >= 0 then |
| S (P) := ' '; |
| Set_Digits (-V); |
| else |
| S (P) := '-'; |
| Set_Digits (V); |
| end if; |
| end Image_Integer; |
| |
| ----------------------- |
| -- Set_Image_Integer -- |
| ----------------------- |
| |
| procedure Set_Image_Integer |
| (V : Integer; |
| S : in out String; |
| P : in out Natural) |
| is |
| procedure Set_Digits (T : Integer); |
| -- Set digits of absolute value of T, which is zero or negative. We work |
| -- with the negative of the value so that the largest negative number is |
| -- not a special case. |
| |
| ---------------- |
| -- Set_Digits -- |
| ---------------- |
| |
| procedure Set_Digits (T : Integer) is |
| begin |
| if T <= -10 then |
| Set_Digits (T / 10); |
| P := P + 1; |
| S (P) := Character'Val (48 - (T rem 10)); |
| else |
| P := P + 1; |
| S (P) := Character'Val (48 - T); |
| end if; |
| end Set_Digits; |
| |
| -- Start of processing for Set_Image_Integer |
| |
| begin |
| if V >= 0 then |
| Set_Digits (-V); |
| else |
| P := P + 1; |
| S (P) := '-'; |
| Set_Digits (V); |
| end if; |
| end Set_Image_Integer; |
| |
| end System.Img_Int; |
