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Diffstat (limited to 'gcc-4.3.1/gcc/ada/s-vector.ads')
| -rw-r--r-- | gcc-4.3.1/gcc/ada/s-vector.ads | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/s-vector.ads b/gcc-4.3.1/gcc/ada/s-vector.ads new file mode 100644 index 000000000..8d71514c3 --- /dev/null +++ b/gcc-4.3.1/gcc/ada/s-vector.ads @@ -0,0 +1,51 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- S Y S T E M . V E C T O R S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2002-2005 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. -- +-- -- +------------------------------------------------------------------------------ + +-- This package defines a datatype which is most efficient for performing +-- logical operations on large arrays. See System.Generic_Vector_Operations. + +-- In the future this package may also define operations such as element-wise +-- addition, subtraction, multiplication, minimum and maximum of vector-sized +-- packed arrays of Unsigned_8, Unsigned_16 and Unsigned_32 values. These +-- operations could be implemented as system intrinsics on platforms with +-- direct processor support for them. + +package System.Vectors is + pragma Pure; + + type Vector is mod 2**System.Word_Size; + for Vector'Alignment use Integer'Min + (Standard'Maximum_Alignment, System.Word_Size / System.Storage_Unit); + for Vector'Size use System.Word_Size; + +end System.Vectors; |