File : s-cerrno-zfp.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- S Y S T E M . C . E R R N O --
4 -- --
5 -- S p e c --
6 -- --
7 -- Copyright (C) 2010-2011, AdaCore --
8 -- --
9 -- GNAT is free software; you can redistribute it and/or modify it under --
10 -- terms of the GNU General Public License as published by the Free Soft- --
11 -- ware Foundation; either version 3, or (at your option) any later ver- --
12 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
13 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
14 -- or FITNESS FOR A PARTICULAR PURPOSE. --
15 -- --
16 -- --
17 -- --
18 -- --
19 -- --
20 -- You should have received a copy of the GNU General Public License and --
21 -- a copy of the GCC Runtime Library Exception along with this program; --
22 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
23 -- <http://www.gnu.org/licenses/>. --
24 -- --
25 -- GNAT was originally developed by the GNAT team at New York University. --
26 -- Extensive contributions were provided by Ada Core Technologies Inc. --
27 -- --
28 ------------------------------------------------------------------------------
29
30 pragma Restrictions (No_Elaboration_Code);
31
32 package System.C.Errno is
33 pragma Preelaborate;
34
35 function Get_Errno_Addr return Address;
36 pragma Export (C, Get_Errno_Addr, "__errno");
37 -- Return the address of the (per thread) errno variable.
38 -- Note that this is not used by the runtime (only referenced by libm),
39 -- and therefore the current implementation may not be thread safe.
40 end System.C.Errno;