Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-atacco.ads @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT COMPILER COMPONENTS -- | |
| 4 -- -- | |
| 5 -- S Y S T E M . A D D R E S S _ T O _ A C C E S S _ C O N V E R S I O N S -- | |
| 6 -- -- | |
| 7 -- S p e c -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. -- | |
| 10 -- -- | |
| 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. -- | |
| 14 -- -- | |
| 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. -- | |
| 21 -- -- | |
| 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. -- | |
| 25 -- -- | |
| 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/>. -- | |
| 30 -- -- | |
| 31 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 32 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 33 -- -- | |
| 34 ------------------------------------------------------------------------------ | |
| 35 | |
| 36 generic | |
| 37 type Object (<>) is limited private; | |
| 38 | |
| 39 package System.Address_To_Access_Conversions is | |
| 40 pragma Preelaborate; | |
| 41 | |
| 42 pragma Compile_Time_Warning | |
| 43 (Object'Unconstrained_Array, | |
| 44 "Object is unconstrained array type" & ASCII.LF & | |
| 45 "To_Pointer results may not have bounds"); | |
| 46 | |
| 47 type Object_Pointer is access all Object; | |
| 48 for Object_Pointer'Size use Standard'Address_Size; | |
| 49 | |
| 50 pragma No_Strict_Aliasing (Object_Pointer); | |
| 51 -- Strictly speaking, this routine should not be used to generate pointers | |
| 52 -- to other than proper values of the proper type, but in practice, this | |
| 53 -- is done all the time. This pragma stops the compiler from doing some | |
| 54 -- optimizations that may cause unexpected results based on the assumption | |
| 55 -- of no strict aliasing. | |
| 56 | |
| 57 function To_Pointer (Value : Address) return Object_Pointer; | |
| 58 function To_Address (Value : Object_Pointer) return Address; | |
| 59 | |
| 60 pragma Import (Intrinsic, To_Pointer); | |
| 61 pragma Import (Intrinsic, To_Address); | |
| 62 | |
| 63 end System.Address_To_Access_Conversions; |