Mercurial > projects > ldc
view druntime/src/compiler/dmd/arraycat.d @ 759:d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Tue, 11 Nov 2008 01:52:37 +0100 |
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/** * Part of the D programming language runtime library. */ /* * Copyright (C) 2004-2007 by Digital Mars, www.digitalmars.com * Written by Walter Bright * * This software is provided 'as-is', without any express or implied * warranty. In no event will the authors be held liable for any damages * arising from the use of this software. * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, in both source and binary form, subject to the following * restrictions: * * o The origin of this software must not be misrepresented; you must not * claim that you wrote the original software. If you use this software * in a product, an acknowledgment in the product documentation would be * appreciated but is not required. * o Altered source versions must be plainly marked as such, and must not * be misrepresented as being the original software. * o This notice may not be removed or altered from any source * distribution. */ /* * Modified by Sean Kelly for use with the D Runtime Project */ module rt.arraycat; private { import stdc.string; debug import stdc.stdio; } extern (C): byte[] _d_arraycopy(size_t size, byte[] from, byte[] to) { debug printf("f = %p,%d, t = %p,%d, size = %d\n", from.ptr, from.length, to.ptr, to.length, size); if (to.length != from.length) { throw new Exception("lengths don't match for array copy"); } else if (to.ptr + to.length * size <= from.ptr || from.ptr + from.length * size <= to.ptr) { memcpy(to.ptr, from.ptr, to.length * size); } else { throw new Exception("overlapping array copy"); } return to; }