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111
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1 /* Test -Wsizeof-pointer-div warnings. */
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2 /* { dg-do compile } */
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3 /* { dg-options "-Wall" } */
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4
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5 int
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6 f1 (int *array)
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7 {
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8 int i;
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9 i = sizeof array / sizeof *array; /* { dg-warning "does not compute the number of array elements" } */
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10 i += sizeof array / sizeof array[0]; /* { dg-warning "does not compute the number of array elements" } */
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11 i += sizeof(array) / sizeof(*array); /* { dg-warning "does not compute the number of array elements" } */
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12 i += sizeof(array) / sizeof(array[0]); /* { dg-warning "does not compute the number of array elements" } */
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13 i += (sizeof(array)) / (sizeof(array[0])); /* { dg-warning "does not compute the number of array elements" } */
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14 i += sizeof(array) / sizeof(int); /* { dg-warning "does not compute the number of array elements" } */
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15 i += sizeof(array) / sizeof(char);
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16 i += sizeof(*array) / sizeof(char);
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17 i += sizeof(array[0]) / sizeof(char);
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18 return i;
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19 }
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20
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21 int
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22 f2 (void)
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23 {
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24 int array[10];
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25 int i;
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26 i = sizeof array / sizeof *array;
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27 i += sizeof array / sizeof array[0];
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28 i += sizeof(array) / sizeof(*array);
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29 i += sizeof(array) / sizeof(array[0]);
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30 i += (sizeof(array)) / (sizeof(array[0]));
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31 i += sizeof(array) / sizeof(int);
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32 i += sizeof(array) / sizeof(char);
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33 i += sizeof(*array) / sizeof(char);
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34 i += sizeof(array[0]) / sizeof(char);
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35 return i;
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36 }
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37
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38 int
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39 f3 (int a[])
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40 {
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41 return sizeof a / sizeof *a; /* { dg-warning "Wsizeof-array-argument" } */
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42 }
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