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annotate gen/utils.h @ 1638:0de4525a9ed6

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Apply workaround for #395 by klickverbot.
author Christian Kamm <kamm incasoftware de>
date Mon, 08 Mar 2010 20:06:08 +0100
parents ec1d9dc1d32a
children
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1 #ifndef __LDC_GEN_UTILS_H__
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2 #define __LDC_GEN_UTILS_H__
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3
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4 #include "root.h"
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5
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6 /// Very simple templated iterator for DMD ArrayS.
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7 template<class C>
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8 struct ArrayIter
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9 {
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10 Array* array;
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11 size_t index;
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12
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13 ArrayIter(Array& arr, size_t idx = 0)
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14 : array(&arr), index(idx)
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15 { }
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16 ArrayIter(Array* arr, size_t idx = 0)
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17 : array(arr), index(idx)
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18 { assert(arr && "null array"); }
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19
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20 ArrayIter<C>& operator=(const Array& arr)
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21 {
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22 array = &arr;
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23 index = 0;
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24 return *this;
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25 }
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26 ArrayIter<C>& operator=(const Array* arr)
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27 {
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28 assert(arr && "null array");
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29 array = arr;
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30 index = 0;
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31 return *this;
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32 }
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33
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34 bool done()
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35 {
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36 return index >= array->dim;
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37 }
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38 bool more()
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39 {
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40 return index < array->dim;
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41 }
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42
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43 C* get() {
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44 return static_cast<C*>(array->data[index]);
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45 }
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46 C* operator->() {
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47 return get();
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48 }
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49 C* operator*() {
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50 return get();
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51 }
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52
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53 void next()
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54 {
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55 ++index;
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56 }
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57
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58 bool operator==(const ArrayIter<C>& other) {
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59 return &array->data[index] == &other.array->data[other.index];
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60 }
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61 };
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63 // some aliases
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64 typedef ArrayIter<Dsymbol> DsymbolIter;
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65 typedef ArrayIter<FuncDeclaration> FuncDeclarationIter;
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66 typedef ArrayIter<VarDeclaration> VarDeclarationIter;
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67
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68 #endif