annotate anagram/support/agmap.h @ 21:1c9dac05d040

Add lint-style FALLTHROUGH annotations to fallthrough cases. (in the parse engine and thus the output code) Document this, because the old output causes warnings with gcc10.
author David A. Holland
date Mon, 13 Jun 2022 00:04:38 -0400
parents 13d2b8934445
children
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1997-2002 Parsifal Software. All Rights Reserved.
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4 * See the file COPYING for license and usage terms.
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5 *
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6 * agmap.h
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7 */
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8
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9 #ifndef AGMAP_H
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10 #define AGMAP_H
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11
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12 #include "agbaltree.h"
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13
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14
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15 template <class Key, class Value>
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16 class AgMap {
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17 public:
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18 class Wrapper {
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19 public:
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20 Key key;
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21 Value value;
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22 int operator < (const Wrapper &w) const { return key < w.key; }
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23 Wrapper(const Key &k, const Value &v) : key(k), value(v) {}
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24 };
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25
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26 AgBalancedTree<Wrapper> tree;
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27 friend class AgBalancedTree<Wrapper>;
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28
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29 public:
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30 Value &operator [] (const Key &k);
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31 int includes(const Key &k, Value &v);
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32 };
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33
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34 template <class Key, class Value>
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35 Value &AgMap<Key,Value>::operator [] (const Key &k) {
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36 Wrapper wrapper(k, Value());
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37 Wrapper *result = &wrapper;
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38 tree.identify(result);
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39 return result->value;
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40 }
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41
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42 template <class Key, class Value>
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43 int AgMap<Key,Value>::includes(const Key &k, Value &v) {
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44 Wrapper wrapper(k,v);
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45 Wrapper *result = &wrapper;
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46 int flag = tree.identify(result);
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47 v = result->value;
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48 return flag;
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49 }
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50
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51
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52 #endif /* AGMAP_H */