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annotate oldclasslib/include/strdict.h @ 21:1c9dac05d040

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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 607e3be6bad8
children
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1 /*
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2 * AnaGram, a System for Syntax Directed Programmng
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3 * String Dictionary Class Definition
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4 *
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5 * Copyright 1993 Parsifal Software. All Rights Reserved.
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6 *
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7 * This software is provided 'as-is', without any express or implied
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8 * warranty. In no event will the authors be held liable for any damages
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9 * arising from the use of this software.
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10 *
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11 * Permission is granted to anyone to use this software for any purpose,
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12 * including commercial applications, and to alter it and redistribute it
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13 * freely, subject to the following restrictions:
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14 *
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15 * 1. The origin of this software must not be misrepresented; you must not
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16 * claim that you wrote the original software. If you use this software
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17 * in a product, an acknowledgment in the product documentation would be
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18 * appreciated but is not required.
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19 * 2. Altered source versions must be plainly marked as such, and must not be
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20 * misrepresented as being the original software.
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21 * 3. This notice may not be removed or altered from any source distribution.
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22 */
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23
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24 #ifndef STRDICT_H
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25 #define STRDICT_H
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26
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27 class string_dictionary {
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28 unsigned *sxs; // Storage for string indices
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29 char *cs; // Storage for character strings
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30 unsigned csx; // Next available location in cs
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31 unsigned csxmax; // Size of cs
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32 unsigned ns; // Number of strings in dictionary
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33 unsigned nsmax; // Max number of strings
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34 unsigned *ht; // Hash table storage
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35 unsigned htl; // Size of hash table
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36 unsigned htmask; // Hash table mask
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37 unsigned hash(const char *); // Hash function
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38 unsigned n_calls; // Number of calls
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39 unsigned n_collisions; // Number of collisions
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40 int copy_flag; // Is it live or is it memorex?
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41 public:
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42
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43
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44 // Constructors
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45
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46 string_dictionary(unsigned size, unsigned word_length = 10);
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47
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48 string_dictionary(const string_dictionary &);
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49
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50 void operator = (const string_dictionary &);
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51
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52 // Destructor
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53
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54 ~string_dictionary();
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55
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56
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57 // Reset String Dictionary
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58
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59 friend string_dictionary &reset(string_dictionary &);
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60
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61
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62 // Enter a String in Dictionary
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63
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64 unsigned operator << (const char *); // Insert string
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65
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66
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67 // Look up a String in Dictionary
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68
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69 unsigned operator [] (const char *); // Look up string
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70
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71
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72 // Recover String from Dictionary Index
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73
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74 char * operator [] (unsigned); // Find string
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75
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76
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77 // Find Number of Entries in Dictionary
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78
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79 friend unsigned size(string_dictionary &);
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80 };
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81
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82 #endif