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annotate gcc/testsuite/g++.dg/warn/sequence-pt-2.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* More sequence point warning tests */
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2 /* { dg-do compile } */
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3 /* { dg-options "-Wsequence-point" } */
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4
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5 struct s { struct s *nxt; int v; } q;
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6
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7 int x[10];
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8
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9 int foo(int *p)
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10 {
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11 int i = 0;
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12
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13 /* Test general-lvalue sequence point warnings */
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14 (*p) = (*p)++; /* { dg-warning "undefined" "sequence point warning" } */
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15 p[3] = p[3]++; /* { dg-warning "undefined" "sequence point warning" } */
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16 p[i] = p[i]++; /* { dg-warning "undefined" "sequence point warning" } */
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17 x[3] = x[3]++; /* { dg-warning "undefined" "sequence point warning" } */
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18 q.nxt->nxt->v = q.nxt->nxt->v++; /* { dg-warning "undefined" "sequence point warning" } */
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19
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20 /* test expressions that appear elsewhere in the C grammar */
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21
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22 { int a = i-i++; (void)a;} /* { dg-warning "undefined" "sequence point warning" } */
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23
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24 if ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */
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25 return i-i++; /* { dg-warning "undefined" "sequence point warning" } */
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26
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27 for (i-i++;;) /* { dg-warning "undefined" "sequence point warning" } */
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28 ;
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29
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30 for (; (i-i++) != 0; ) /* { dg-warning "undefined" "sequence point warning" } */
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31 ;
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32
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33 for (;;i-i++) /* { dg-warning "undefined" "sequence point warning" } */
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34 ;
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35
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36 while ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */
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37 ;
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38
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39 do {} while ((i-i++) != 0); /* { dg-warning "undefined" "sequence point warning" } */
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40
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41 switch (i-i++) { /* { dg-warning "undefined" "sequence point warning" } */
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42 case 0: return 1;
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43 }
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44
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45 return 0;
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46 }