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annotate anagram/support/agnotify.cpp @ 6:607e3be6bad8

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Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.
author David A. Holland
date Mon, 30 May 2022 23:46:22 -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 * agnotify.cpp
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7 */
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8
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9 #include "agnotify.h"
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10 #include "myalloc.h"
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11
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12 //#define INCLUDE_LOGGING
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13 #include "log.h"
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14
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15
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16 AgNotificationActionBase::~AgNotificationActionBase() {
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17 LOGSECTION("AgNotificationActionBase::~AgNotificationActionBase");
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18 LOGV(notifierStack.size());
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19 int n = notifierStack.size();
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20 while (n--) {
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21 LOGV(n);
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22 notifierStack[n]->remove(this);
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23 }
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24 }
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25
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26 AgNotificationActionBase &
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27 AgNotificationActionBase::attach(AgNotifierBase *notifier) {
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28 LOGSECTION("AgNotificationActionBase::attach");
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29 notifierStack.push(notifier);
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30 notifier->attach(this);
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31 return *this;
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32 }
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33
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34 void AgNotificationActionBase::remove(AgNotifierBase *notifier) {
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35 LOGSECTION("AgNotificationActionBase::remove");
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36 int i, n = notifierStack.size();
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37 ok_ptr(this);
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38 ok_ptr(notifier);
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39 for (i = 0; i < n; i++) {
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40 if (notifierStack[i] == notifier) {
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41 n--;
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42 if (i < n) {
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43 notifierStack[i] = notifierStack.pop();
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44 }
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45 else {
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46 notifierStack.pop();
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47 }
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48 return;
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49 }
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50 }
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51 }
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52
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53 AgNotifierBase::~AgNotifierBase() {
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54 LOGSECTION("AgNotifierBase::~AgNotifierBase");
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55 int n = notifyStack.size();
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56 while (n--) {
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57 notifyStack[n]->remove(this);
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58 }
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59 }
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60
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61 void AgNotifierBase::notify() {
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62 LOGSECTION("AgNotifierBase::notify");
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63 int n = notifyStack.size();
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64 int i;
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65 for (i = 0; i < n; i++) {
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66 notifyStack[i]->perform();
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67 }
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68 }
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69
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70 void AgNotifierBase::remove(AgNotificationActionBase *action) {
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71 LOGSECTION("AgNotifierBase::remove");
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72 int i, n = notifyStack.size();
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73 for (i = 0; i < n; i++) {
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74 if (notifyStack[i] == action) {
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75 n--;
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76 LOGV(i);
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77 LOGV(n);
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78 LOGV(notifyStack.size());
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79 if (i < n) {
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80 notifyStack[i] = notifyStack.pop();
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81 }
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82 else {
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83 notifyStack.pop();
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84 }
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85 return;
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86 }
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87 }
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88 }
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89