// Bob Walters 10-2008// Test for Container using non-standard pointer types.// Copyright (C) 2008, 2009// Free Software Foundation, Inc.//// This file is part of the GNU ISO C++ Library. This library is free// software; you can redistribute it and/or modify it under the// terms of the GNU General Public License as published by the// Free Software Foundation; either version 3, or (at your option)// any later version.// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.// You should have received a copy of the GNU General Public License along// with this library; see the file COPYING3. If not see// <http://www.gnu.org/licenses/>.// { dg-do compile }#include <algorithm>#include <testsuite_hooks.h>#include <ext/pointer.h>using __gnu_cxx::_Pointer_adapter;using __gnu_cxx::_Relative_pointer_impl;using __gnu_cxx::__static_pointer_cast;using __gnu_cxx::__const_pointer_cast;struct A {int i;};struct B : public A{int j;};typedef _Pointer_adapter<_Relative_pointer_impl<B> > B_pointer;typedef _Pointer_adapter<_Relative_pointer_impl<const B> > const_B_pointer;typedef _Pointer_adapter<_Relative_pointer_impl<A> > A_pointer;typedef _Pointer_adapter<_Relative_pointer_impl<const A> > const_A_pointer;void test01(void) {bool test __attribute__((unused)) = true;A a;B b;A_pointer aptr( &a );// Can't implicitly cast from A* to B*B_pointer bptr1(aptr); // { dg-error "instantiated from here" 31 }B_pointer bptr2(&a); // { dg-error "instantiated from here" 32 }// but explicit cast/conversion is OK.B_pointer bptr3(__static_pointer_cast<B_pointer>(aptr)); // okB_pointer bptr4(__static_pointer_cast<B_pointer>(&a)); // ok// Can't implicitly cast from A* to B*bptr1 = aptr; // { dg-error "instantiated from here" 39 }bptr1 = &a; // { dg-error "instantiated from here" 40 }// but explicit cast/conversion is OK.bptr1 = __static_pointer_cast<B_pointer>(aptr); // okbptr1 = __static_pointer_cast<B_pointer>(&a); // ok// Similarly, can't shed constness via implicit castconst_A_pointer captr(&a);A_pointer aptr2(captr); // { dg-error "instantiated from here" 48 }// but explicit cast/conversion is OK.A_pointer aptr3(__const_pointer_cast<A_pointer>(captr)); // ok// Similarly, can't shed constness via implicit castaptr2 = captr; // { dg-error "instantiated from here" 54 }// but explicit cast/conversion is OK.aptr3 = __const_pointer_cast<A_pointer>(captr); // ok// Combine explicit const cast with implicit downcast.const_B_pointer cbptr(&b);A_pointer aptr4(cbptr); // { dg-error "instantiated from here" 61 }aptr4 = cbptr; // { dg-error "instantiated from here" 62 }A_pointer aptr5(__const_pointer_cast<B_pointer>(cbptr)); // okaptr5 = __const_pointer_cast<B_pointer>(cbptr); // ok}// { dg-error "invalid conversion " "" { target *-*-* } 294 }// { dg-error "initializing argument 1 of" "" { target *-*-* } 294 }// { dg-error "invalid conversion " "" { target *-*-* } 300 }// { dg-error "initializing argument 1 of" "" { target *-*-* } 300 }// { dg-error "invalid conversion " "" { target *-*-* } 317 }// { dg-error "initializing argument 1 of" "" { target *-*-* } 317 }// { dg-error "invalid conversion " "" { target *-*-* } 325 }// { dg-error "initializing argument 1 of" "" { target *-*-* } 325 }// { dg-excess-errors "In constructor" }