3 // Test for Container using non-standard pointer types.
5 // Copyright (C) 2008, 2009
6 // Free Software Foundation, Inc.
8 // This file is part of the GNU ISO C++ Library. This library is free
9 // software; you can redistribute it and/or modify it under the
10 // terms of the GNU General Public License as published by the
11 // Free Software Foundation; either version 3, or (at your option)
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
19 // You should have received a copy of the GNU General Public License along
20 // with this library; see the file COPYING3. If not see
21 // <http://www.gnu.org/licenses/>.
27 #include <testsuite_hooks.h>
28 #include <ext/pointer.h>
30 using __gnu_cxx::_Pointer_adapter;
31 using __gnu_cxx::_Relative_pointer_impl;
32 using __gnu_cxx::__static_pointer_cast;
33 using __gnu_cxx::__const_pointer_cast;
42 typedef _Pointer_adapter<_Relative_pointer_impl<B> > B_pointer;
43 typedef _Pointer_adapter<_Relative_pointer_impl<const B> > const_B_pointer;
44 typedef _Pointer_adapter<_Relative_pointer_impl<A> > A_pointer;
45 typedef _Pointer_adapter<_Relative_pointer_impl<const A> > const_A_pointer;
49 bool test __attribute__((unused)) = true;
56 // Can't implicitly cast from A* to B*
57 B_pointer bptr1(aptr); // { dg-error "instantiated from here" 31 }
58 B_pointer bptr2(&a); // { dg-error "instantiated from here" 32 }
60 // but explicit cast/conversion is OK.
61 B_pointer bptr3(__static_pointer_cast<B_pointer>(aptr)); // ok
62 B_pointer bptr4(__static_pointer_cast<B_pointer>(&a)); // ok
64 // Can't implicitly cast from A* to B*
65 bptr1 = aptr; // { dg-error "instantiated from here" 39 }
66 bptr1 = &a; // { dg-error "instantiated from here" 40 }
68 // but explicit cast/conversion is OK.
69 bptr1 = __static_pointer_cast<B_pointer>(aptr); // ok
70 bptr1 = __static_pointer_cast<B_pointer>(&a); // ok
72 // Similarly, can't shed constness via implicit cast
73 const_A_pointer captr(&a);
74 A_pointer aptr2(captr); // { dg-error "instantiated from here" 48 }
76 // but explicit cast/conversion is OK.
77 A_pointer aptr3(__const_pointer_cast<A_pointer>(captr)); // ok
79 // Similarly, can't shed constness via implicit cast
80 aptr2 = captr; // { dg-error "instantiated from here" 54 }
82 // but explicit cast/conversion is OK.
83 aptr3 = __const_pointer_cast<A_pointer>(captr); // ok
85 // Combine explicit const cast with implicit downcast.
86 const_B_pointer cbptr(&b);
87 A_pointer aptr4(cbptr); // { dg-error "instantiated from here" 61 }
88 aptr4 = cbptr; // { dg-error "instantiated from here" 62 }
90 A_pointer aptr5(__const_pointer_cast<B_pointer>(cbptr)); // ok
91 aptr5 = __const_pointer_cast<B_pointer>(cbptr); // ok
94 // { dg-error "invalid conversion " "" { target *-*-* } 294 }
95 // { dg-error "initializing argument 1 of" "" { target *-*-* } 294 }
96 // { dg-error "invalid conversion " "" { target *-*-* } 300 }
97 // { dg-error "initializing argument 1 of" "" { target *-*-* } 300 }
98 // { dg-error "invalid conversion " "" { target *-*-* } 317 }
99 // { dg-error "initializing argument 1 of" "" { target *-*-* } 317 }
100 // { dg-error "invalid conversion " "" { target *-*-* } 325 }
101 // { dg-error "initializing argument 1 of" "" { target *-*-* } 325 }
102 // { dg-excess-errors "In constructor" }