File : s-memcop-zfp.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . M E M O R Y _ C O P Y --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 2006-2014, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This package provides a general block copy mechanisms analogous to that
33 -- provided by the C routine memcpy allowing for copies without overlap.
34
35 pragma Restrictions (No_Elaboration_Code);
36
37 with Interfaces.C;
38
39 package System.Memory_Copy is
40 pragma Preelaborate;
41
42 function memcpy
43 (Dest : Address; Src : Address; N : Interfaces.C.size_t) return Address;
44 pragma Export (C, memcpy, "memcpy");
45 -- Copies N storage units from area starting at Src to area starting
46 -- at Dest without any check for buffer overflow. The memory areas
47 -- must not overlap, or the result of this call is undefined.
48
49 end System.Memory_Copy;