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annotate anagram/support/agcstack.h @ 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 * agcstack.h - character stack
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7 */
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8
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9 #ifndef AGCSTACK_H
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10 #define AGCSTACK_H
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11
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12 #include "agstack.h"
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13 #include "agstring.h"
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14
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15
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16 class AgCharStack : public AgStack<char> {
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17 public:
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18 AgCharStack()
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19 : AgStack<char>()
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20 {}
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21 AgCharStack(const int c)
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22 : AgStack<char>((char) c)
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23 {}
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24 AgCharStack(const AgCharStack &s)
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25 : AgStack<char>(s)
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26 {}
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27 AgCharStack &push(const char *s);
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28 AgCharStack &push(const unsigned char *s) {
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29 return push((const char *) s);
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30 }
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31 AgCharStack &push(const char *s, unsigned n);
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32 AgCharStack &push(const unsigned char *s, unsigned n) {
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33 return push((const char *)s, n);
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34 }
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35
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36 AgCharStack &operator << (AgString s);
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37 AgCharStack &operator << (const char *s);
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38
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39 AgCharStack &operator << (int c) {
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40 push((char) c);
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41 return *this;
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42 }
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43
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44 AgCharStack &push(const AgString &s) {
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45 (*this) << s;
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46 return *this;
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47 }
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48
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49 AgCharStack &push(const int c) {
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50 AgStack<char>::push((char) c);
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51 return *this;
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52 }
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53
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54 AgString popString(unsigned n);
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55 AgString popString();
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56 };
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57
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58
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59 #endif /* AGCSTACK_H */