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111
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1 // { dg-do assemble }
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2 // Copyright (C) 1999 Free Software Foundation, Inc.
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3 // Contributed by Nathan Sidwell 12 Dec 1999 <nathan@acm.org>
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4
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5 // static_cast should not cast _away_ constness ([expr.static.cast]/6),
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6 // but nothing bans _adding_ constness. [expr.static.cast]/10 states that a
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7 // pointer of type cv void can be cast to pointer to object type.
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8
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9 struct X;
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10 struct Y {};
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11 struct Z : Y {};
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12
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13 void fn (void *p, void const *cp, Y *yp, Y const *ycp, Z *zp, Z const *zcp)
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14 {
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15 static_cast <X *> (p);
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16 static_cast <X const *> (p);
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17 static_cast <int *> (p);
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18 static_cast <int const *> (p);
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19 static_cast <int **> (p);
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20 static_cast <int const **> (p);
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21 static_cast <int *const *> (p);
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22 static_cast <int const *const *> (p);
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23
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145
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24 static_cast <X *> (cp); // { dg-error "3:.static_cast. from type .const void\\*. to type .X\\*. casts away qualifiers" } lose const
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111
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25 static_cast <X const *> (cp);
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145
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26 static_cast <int *> (cp); // { dg-error "3:.static_cast. from type .const void\\*. to type .int\\*. casts away qualifiers" } lose const
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111
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27 static_cast <int const *> (cp);
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145
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28 static_cast <int **> (cp); // { dg-error "3:.static_cast. from type .const void\\*. to type .int\\*\\*. casts away qualifiers" } lose const
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29 static_cast <int const **> (cp); // { dg-error "3:.static_cast. from type .const void\\*. to type .const int\\*\\*. casts away qualifiers" } lose const
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111
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30 static_cast <int *const *> (cp);
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31 static_cast <int const *const *> (cp);
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32
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33 static_cast <Z *> (yp);
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34 static_cast <Z const *> (yp);
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35
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145
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36 static_cast <Z *> (ycp); // { dg-error "3:.static_cast. from type .const Y\\*. to type .Z\\*. casts away qualifiers" } lose const
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111
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37 static_cast <Z const *> (ycp);
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38
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39 static_cast <Y *> (zp);
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40 static_cast <Y const *> (zp);
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41
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145
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42 static_cast <Y *> (zcp); // { dg-error "3:invalid .static_cast. from type .const Z\\*. to type .Y\\*." } lose const
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111
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43 static_cast <Y const *> (zcp);
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44 }
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