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annotate dmd2/root/lstring.h @ 1650:40bd4a0d4870

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Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.
author Tomas Lindquist Olsen
date Wed, 19 May 2010 12:42:32 +0200
parents 638d16625da2
children
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1
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2 // lstring.h
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3 // length-prefixed strings
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4
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5 // Copyright (c) 1999-2002 by Digital Mars
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6 // All Rights Reserved
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7 // written by Walter Bright
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8 // www.digitalmars.com
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9 // License for redistribution is by either the Artistic License
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10 // in artistic.txt, or the GNU General Public License in gnu.txt.
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11 // See the included readme.txt for details.
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12
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13 #ifndef LSTRING_H
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14 #define LSTRING_H 1
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15
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16 #include "dchar.h"
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17
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18 struct Lstring
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19 {
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20 unsigned length;
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21
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22 // Disable warning about nonstandard extension
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23 #pragma warning (disable : 4200)
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24 dchar string[];
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25
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26 static Lstring zero; // 0 length string
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27
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28 // No constructors because we want to be able to statically
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29 // initialize Lstring's, and Lstrings are of variable size.
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30
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31 #if M_UNICODE
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32 #define LSTRING(p,length) { length, L##p }
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33 #else
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34 #define LSTRING(p,length) { length, p }
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35 #endif
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36
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37 #if __GNUC__
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38 #define LSTRING_EMPTY() { 0 }
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39 #else
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40 #define LSTRING_EMPTY() LSTRING("", 0)
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41 #endif
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42
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43 static Lstring *ctor(const dchar *p) { return ctor(p, Dchar::len(p)); }
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44 static Lstring *ctor(const dchar *p, unsigned length);
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45 static unsigned size(unsigned length) { return sizeof(Lstring) + (length + 1) * sizeof(dchar); }
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46 static Lstring *alloc(unsigned length);
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47 Lstring *clone();
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48
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49 unsigned len() { return length; }
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50
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51 dchar *toDchars() { return string; }
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52
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53 hash_t hash() { return Dchar::calcHash(string, length); }
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54 hash_t ihash() { return Dchar::icalcHash(string, length); }
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55
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56 static int cmp(const Lstring *s1, const Lstring *s2)
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57 {
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58 int c = s2->length - s1->length;
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59 return c ? c : Dchar::memcmp(s1->string, s2->string, s1->length);
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60 }
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61
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62 static int icmp(const Lstring *s1, const Lstring *s2)
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63 {
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64 int c = s2->length - s1->length;
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65 return c ? c : Dchar::memicmp(s1->string, s2->string, s1->length);
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66 }
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67
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68 Lstring *append(const Lstring *s);
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69 Lstring *substring(int start, int end);
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70 };
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71
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72 #endif