1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- System.Atomic_Operations.Arithmetic --
9 -- Copyright (C) 2019-2020, Free Software Foundation, Inc. --
11 -- This specification is derived from the Ada Reference Manual for use with --
12 -- GNAT. The copyright notice above, and the license provisions that follow --
13 -- apply solely to the contents of the part following the private keyword. --
15 -- GNAT is free software; you can redistribute it and/or modify it under --
16 -- terms of the GNU General Public License as published by the Free Soft- --
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
22 -- As a special exception under Section 7 of GPL version 3, you are granted --
23 -- additional permissions described in the GCC Runtime Library Exception, --
24 -- version 3.1, as published by the Free Software Foundation. --
26 -- You should have received a copy of the GNU General Public License and --
27 -- a copy of the GCC Runtime Library Exception along with this program; --
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
29 -- <http://www.gnu.org/licenses/>. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
34 ------------------------------------------------------------------------------
39 type Atomic_Type is range <> with Atomic;
40 package System.Atomic_Operations.Arithmetic
45 (Item : aliased in out Atomic_Type;
46 Value : Atomic_Type) with Convention => Intrinsic;
48 procedure Atomic_Subtract
49 (Item : aliased in out Atomic_Type;
50 Value : Atomic_Type) with Convention => Intrinsic;
52 function Atomic_Fetch_And_Add
53 (Item : aliased in out Atomic_Type;
54 Value : Atomic_Type) return Atomic_Type with Convention => Intrinsic;
56 function Atomic_Fetch_And_Subtract
57 (Item : aliased in out Atomic_Type;
58 Value : Atomic_Type) return Atomic_Type with Convention => Intrinsic;
61 (Item : aliased Atomic_Type) return Boolean with Convention => Intrinsic;
64 pragma Inline_Always (Atomic_Add);
65 pragma Inline_Always (Atomic_Subtract);
66 pragma Inline_Always (Atomic_Fetch_And_Add);
67 pragma Inline_Always (Atomic_Fetch_And_Subtract);
68 pragma Inline_Always (Is_Lock_Free);
69 end System.Atomic_Operations.Arithmetic;