| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- System.Atomic_Operations.Exchange -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2019-2022, Free Software Foundation, Inc. -- |
| -- -- |
| -- This specification is derived from the Ada Reference Manual for use with -- |
| -- GNAT. The copyright notice above, and the license provisions that follow -- |
| -- apply solely to the contents of the part following the private keyword. -- |
| -- -- |
| -- 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| generic |
| type Atomic_Type is private with Atomic; |
| package System.Atomic_Operations.Exchange |
| with Pure |
| is |
| function Atomic_Exchange |
| (Item : aliased in out Atomic_Type; |
| Value : Atomic_Type) return Atomic_Type with Convention => Intrinsic; |
| |
| function Atomic_Compare_And_Exchange |
| (Item : aliased in out Atomic_Type; |
| Prior : aliased in out Atomic_Type; |
| Desired : Atomic_Type) return Boolean with Convention => Intrinsic; |
| |
| function Is_Lock_Free |
| (Item : aliased Atomic_Type) return Boolean with Convention => Intrinsic; |
| |
| private |
| pragma Inline_Always (Atomic_Exchange); |
| pragma Inline_Always (Atomic_Compare_And_Exchange); |
| pragma Inline_Always (Is_Lock_Free); |
| end System.Atomic_Operations.Exchange; |
