Mercurial > hg > CbC > CbC_gcc
diff gcc/ada/libgnat/s-atopex.ads @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/ada/libgnat/s-atopex.ads Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,56 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- System.Atomic_Operations.Exchange -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2019, 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. -- +-- -- +------------------------------------------------------------------------------ + +pragma Ada_2020; + +generic + type Atomic_Type is private with Atomic; +package System.Atomic_Operations.Exchange + with Pure +-- Blocking +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;