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111
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1 /* Test diagnostics for arithmetic on void and function pointers.
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2 Test with no special options. */
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3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
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4 /* { dg-do compile } */
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5 /* { dg-options "" } */
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6
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7 void *p;
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8 void (*f)(void);
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9
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10 void
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11 g (void)
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12 {
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13 p + 0;
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14 p + 1;
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15 0 + p;
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16 1 + p;
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17 p - 0;
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18 p - 1;
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19 p += 0;
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20 p += 1;
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21 p -= 0;
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22 p -= 1;
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23 f + 0;
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24 f + 1;
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25 0 + f;
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26 1 + f;
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27 f - 0;
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28 f - 1;
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29 f += 0;
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30 f += 1;
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31 f -= 0;
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32 f -= 1;
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33 p[0]; /* { dg-warning "dereferencing 'void \\*' pointer" } */
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34 0[p]; /* { dg-warning "dereferencing 'void \\*' pointer" } */
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35 f[0]; /* { dg-error "subscripted value is pointer to function" } */
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36 0[f]; /* { dg-error "subscripted value is pointer to function" } */
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37 p - p;
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38 f - f;
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39 }
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