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annotate anagram/agcore/checksum.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 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 1993-1999 Parsifal Software. All Rights Reserved.
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4 * Copyright 2006 David A. Holland. All Rights Reserved.
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5 * See the file COPYING for license and usage terms.
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6 *
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7 * checksum.h - self-checksum module
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8 */
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9
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10 #ifndef CHECKSUM_H
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11 #define CHECKSUM_H
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12
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13 enum summable {
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14 SUM_AG1,
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15 SUM_AG,
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16 SUM_AGCL,
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17 };
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18
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19 struct suminfo {
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20 unsigned long length;
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21 unsigned long sum;
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22 };
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23
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24 struct sumentry {
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25 summable what;
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26 unsigned long offset;
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27 suminfo correct;
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28 suminfo observed;
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29 };
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30
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31 void observeSum(sumentry *s);
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32
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33 void sum_remember_argv0(const char *argv0);
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34
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35 inline int operator != (const suminfo &a, const suminfo &b) {
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36 return a.length != b.length || a.sum != b.sum;
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37 }
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38
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39 // apparently required to have an AgStack<sumentry> (sigh)
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40 inline int operator < (const sumentry &, const sumentry &) {
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41 return 0;
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42 }
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43
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44 #endif /* CHECKSUM_H */