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Diffstat (limited to 'gcc-4.4.0/gcc/ada/s-carsi8.adb')
-rw-r--r-- | gcc-4.4.0/gcc/ada/s-carsi8.adb | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/gcc-4.4.0/gcc/ada/s-carsi8.adb b/gcc-4.4.0/gcc/ada/s-carsi8.adb deleted file mode 100644 index 6e4fd4289..000000000 --- a/gcc-4.4.0/gcc/ada/s-carsi8.adb +++ /dev/null @@ -1,143 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY COMPONENTS -- --- -- --- S Y S T E M . C O M P A R E _ A R R A Y _ S I G N E D _ 8 -- --- -- --- B o d y -- --- -- --- Copyright (C) 2002-2009, 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. -- --- -- ------------------------------------------------------------------------------- - -with System.Address_Operations; use System.Address_Operations; - -with Ada.Unchecked_Conversion; - -package body System.Compare_Array_Signed_8 is - - type Word is mod 2 ** 32; - -- Used to process operands by words - - type Big_Words is array (Natural) of Word; - type Big_Words_Ptr is access Big_Words; - for Big_Words_Ptr'Storage_Size use 0; - -- Array type used to access by words - - type Byte is range -128 .. +127; - for Byte'Size use 8; - -- Used to process operands by bytes - - type Big_Bytes is array (Natural) of Byte; - type Big_Bytes_Ptr is access Big_Bytes; - for Big_Bytes_Ptr'Storage_Size use 0; - -- Array type used to access by bytes - - function To_Big_Words is new - Ada.Unchecked_Conversion (System.Address, Big_Words_Ptr); - - function To_Big_Bytes is new - Ada.Unchecked_Conversion (System.Address, Big_Bytes_Ptr); - - ---------------------- - -- Compare_Array_S8 -- - ---------------------- - - function Compare_Array_S8 - (Left : System.Address; - Right : System.Address; - Left_Len : Natural; - Right_Len : Natural) return Integer - is - Compare_Len : constant Natural := Natural'Min (Left_Len, Right_Len); - - begin - -- If operands are non-aligned, or length is too short, go by bytes - - if ModA (OrA (Left, Right), 4) /= 0 or else Compare_Len < 4 then - return Compare_Array_S8_Unaligned (Left, Right, Left_Len, Right_Len); - end if; - - -- Here we can go by words - - declare - LeftP : constant Big_Words_Ptr := - To_Big_Words (Left); - RightP : constant Big_Words_Ptr := - To_Big_Words (Right); - Words_To_Compare : constant Natural := Compare_Len / 4; - Bytes_Compared_As_Words : constant Natural := Words_To_Compare * 4; - - begin - for J in 0 .. Words_To_Compare - 1 loop - if LeftP (J) /= RightP (J) then - return Compare_Array_S8_Unaligned - (AddA (Left, Address (4 * J)), - AddA (Right, Address (4 * J)), - 4, 4); - end if; - end loop; - - return Compare_Array_S8_Unaligned - (AddA (Left, Address (Bytes_Compared_As_Words)), - AddA (Right, Address (Bytes_Compared_As_Words)), - Left_Len - Bytes_Compared_As_Words, - Right_Len - Bytes_Compared_As_Words); - end; - end Compare_Array_S8; - - -------------------------------- - -- Compare_Array_S8_Unaligned -- - -------------------------------- - - function Compare_Array_S8_Unaligned - (Left : System.Address; - Right : System.Address; - Left_Len : Natural; - Right_Len : Natural) return Integer - is - Compare_Len : constant Natural := Natural'Min (Left_Len, Right_Len); - - LeftP : constant Big_Bytes_Ptr := To_Big_Bytes (Left); - RightP : constant Big_Bytes_Ptr := To_Big_Bytes (Right); - - begin - for J in 0 .. Compare_Len - 1 loop - if LeftP (J) /= RightP (J) then - if LeftP (J) > RightP (J) then - return +1; - else - return -1; - end if; - end if; - end loop; - - if Left_Len = Right_Len then - return 0; - elsif Left_Len > Right_Len then - return +1; - else - return -1; - end if; - end Compare_Array_S8_Unaligned; - -end System.Compare_Array_Signed_8; |