------------------------------------------------------------------------------
-- --
--- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . B I T _ O P S --
-- --
-- S p e c --
-- --
--- Copyright (C) 1992-1999, Free Software Foundation, Inc. --
+-- 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- --
-- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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, --
-- Note: in all the following routines, the System.Address parameters
-- represent the address of the first byte of an array used to represent
-- a packed array (of type System.Unsigned_Types.Packed_Bytes{1,2,4})
- -- The length in bits is passed as a separate parameter.
+ -- The length in bits is passed as a separate parameter. Note that all
+ -- addresses must be of byte aligned arrays.
procedure Bit_And
(Left : System.Address;
Llen : Natural;
- Right : Address;
+ Right : System.Address;
Rlen : Natural;
Result : System.Address);
-- Bitwise "and" of given bit string with result being placed in Result.
- -- The or operation is allowed to destroy unused bits in the last byte,
+ -- The and operation is allowed to destroy unused bits in the last byte,
-- i.e. to leave them set in an undefined manner. Note that Left, Right
-- and Result always have the same length in bits (Len).
(Left : System.Address;
Llen : Natural;
Right : System.Address;
- Rlen : Natural)
- return Boolean;
+ Rlen : Natural) return Boolean;
-- Left and Right are the addresses of two bit packed arrays with Llen
-- and Rlen being the respective length in bits. The routine compares the
-- two bit strings for equality, being careful not to include the unused
procedure Bit_Or
(Left : System.Address;
Llen : Natural;
- Right : Address;
+ Right : System.Address;
Rlen : Natural;
Result : System.Address);
-- Bitwise "or" of given bit string with result being placed in Result.
procedure Bit_Xor
(Left : System.Address;
Llen : Natural;
- Right : Address;
+ Right : System.Address;
Rlen : Natural;
Result : System.Address);
-- Bitwise "xor" of given bit string with result being placed in Result.
- -- The or operation is allowed to destroy unused bits in the last byte,
+ -- The xor operation is allowed to destroy unused bits in the last byte,
-- i.e. to leave them set in an undefined manner. Note that Left, Right
-- and Result always have the same length in bits (Len).