Mercurial > projects > ldc
view dmd2/lstring.c @ 1346:6f4154b318ef
Remove an old workaround that was kept around for ABI-compatibility on x86-64
between different LLVM versions.
This means LLVM r67588 is required if you want to compile for x86-64, otherwise
the backend will assert when you try to return e.g. struct { int i; char c; }
from a function. (In particular, this is no longer compatible with LLVM 2.5)
It also means that any code returning small structs on x86-64 will probably
need to be recompiled in order to be linkable to code compiled with this change.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Tue, 12 May 2009 15:50:48 +0200 |
parents | 356e65836fb5 |
children |
line wrap: on
line source
// lstring.c // Copyright (c) 1999-2002 by Digital Mars // All Rights Reserved // written by Walter Bright // www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. #include <stdlib.h> #include "dchar.h" #include "mem.h" #include "lstring.h" #ifdef _MSC_VER // prevent compiler internal crash Lstring Lstring::zero; #else Lstring Lstring::zero = LSTRING_EMPTY(); #endif Lstring *Lstring::ctor(const dchar *p, unsigned length) { Lstring *s; s = alloc(length); memcpy(s->string, p, length * sizeof(dchar)); return s; } Lstring *Lstring::alloc(unsigned length) { Lstring *s; s = (Lstring *)mem.malloc(size(length)); s->length = length; s->string[length] = 0; return s; } Lstring *Lstring::append(const Lstring *s) { Lstring *t; if (!s->length) return this; t = alloc(length + s->length); memcpy(t->string, string, length * sizeof(dchar)); memcpy(t->string + length, s->string, s->length * sizeof(dchar)); return t; } Lstring *Lstring::substring(int start, int end) { Lstring *t; if (start == end) return &zero; t = alloc(end - start); memcpy(t->string, string + start, (end - start) * sizeof(dchar)); return t; }