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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-imgint.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-imgint.adb | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-imgint.adb b/gcc-4.2.1/gcc/ada/s-imgint.adb new file mode 100644 index 000000000..e57c58d41 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-imgint.adb @@ -0,0 +1,96 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . I M G _ I N T -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005 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 2, 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. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- 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 -- + ------------------- + + function Image_Integer (V : Integer) return String is + P : Natural; + S : String (1 .. Integer'Width); + + begin + if V >= 0 then + P := 1; + S (P) := ' '; + else + P := 0; + end if; + + Set_Image_Integer (V, S, P); + return S (1 .. P); + end Image_Integer; + + ----------------------- + -- Set_Image_Integer -- + ----------------------- + + procedure Set_Image_Integer + (V : Integer; + S : 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. + + 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; |