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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/ada/s-caun16.ads | |
| download | cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.bz2 cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.xz | |
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Diffstat (limited to 'gcc/ada/s-caun16.ads')
| -rw-r--r-- | gcc/ada/s-caun16.ads | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/ada/s-caun16.ads b/gcc/ada/s-caun16.ads new file mode 100644 index 000000000..c152dc4cc --- /dev/null +++ b/gcc/ada/s-caun16.ads @@ -0,0 +1,53 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY COMPONENTS -- +-- -- +-- S Y S T E M . C O M P A R E _ A R R A Y _ U N S I G N E D _ 1 6 -- +-- -- +-- S p e c -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains functions for runtime comparisons on arrays whose +-- elements are 16-bit discrete type values to be treated as unsigned. + +package System.Compare_Array_Unsigned_16 is + + -- Note: although the functions in this package are in a sense Pure, the + -- package cannot be declared as Pure, since the arguments are addresses, + -- not the data, and the result is not pure wrt the address values. + + function Compare_Array_U16 + (Left : System.Address; + Right : System.Address; + Left_Len : Natural; + Right_Len : Natural) return Integer; + -- Compare the array starting at address Left of length Left_Len + -- with the array starting at address Right of length Right_Len. + -- The comparison is in the normal Ada semantic sense of array + -- comparison. The result is -1,0,+1 for Left<Right, Left=Right, + -- Left>Right respectively. This function works with 4 byte words + -- if the operands are aligned on 4-byte boundaries and long enough. + +end System.Compare_Array_Unsigned_16; |