forked from OSchip/llvm-project
156 lines
3.7 KiB
C++
156 lines
3.7 KiB
C++
//===------------------------- dynamic_cast.pass.cpp ----------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <cassert>
|
|
|
|
// This test explicitly tests dynamic cast with types that have inaccessible
|
|
// bases.
|
|
#if defined(__clang__)
|
|
#pragma clang diagnostic ignored "-Winaccessible-base"
|
|
#endif
|
|
|
|
typedef char Pad1[43981];
|
|
typedef char Pad2[34981];
|
|
typedef char Pad3[93481];
|
|
typedef char Pad4[13489];
|
|
typedef char Pad5[81349];
|
|
typedef char Pad6[34819];
|
|
typedef char Pad7[3489];
|
|
|
|
namespace t1
|
|
{
|
|
|
|
// PR33425
|
|
struct C3 { virtual ~C3() {} Pad1 _; };
|
|
struct C5 : protected virtual C3 { Pad2 _; };
|
|
struct C6 : virtual C5 { Pad3 _; };
|
|
struct C7 : virtual C3 { Pad4 _; };
|
|
struct C9 : C6, C7 { Pad5 _; };
|
|
|
|
C9 c9;
|
|
C3 *c3 = &c9;
|
|
|
|
void test()
|
|
{
|
|
assert(dynamic_cast<C3*>(c3) == static_cast<C3*>(&c9));
|
|
assert(dynamic_cast<C5*>(c3) == static_cast<C5*>(&c9));
|
|
assert(dynamic_cast<C6*>(c3) == static_cast<C6*>(&c9));
|
|
assert(dynamic_cast<C7*>(c3) == static_cast<C7*>(&c9));
|
|
assert(dynamic_cast<C9*>(c3) == static_cast<C9*>(&c9));
|
|
}
|
|
|
|
} // t1
|
|
|
|
namespace t2
|
|
{
|
|
|
|
// PR33425
|
|
struct Src { virtual ~Src() {} Pad1 _; };
|
|
struct Mask : protected virtual Src { Pad2 _; };
|
|
struct Dest : Mask { Pad3 _; };
|
|
struct Root : Dest, virtual Src { Pad4 _; };
|
|
|
|
Root root;
|
|
Src *src = &root;
|
|
|
|
void test()
|
|
{
|
|
assert(dynamic_cast<Src*>(src) == static_cast<Src*>(&root));
|
|
assert(dynamic_cast<Mask*>(src) == static_cast<Mask*>(&root));
|
|
assert(dynamic_cast<Dest*>(src) == static_cast<Dest*>(&root));
|
|
assert(dynamic_cast<Root*>(src) == static_cast<Root*>(&root));
|
|
}
|
|
|
|
} // t2
|
|
|
|
namespace t3
|
|
{
|
|
|
|
// PR33487
|
|
struct Class1 { virtual ~Class1() {} Pad1 _; };
|
|
struct Shared : virtual Class1 { Pad2 _; };
|
|
struct Class6 : virtual Shared { Pad3 _; };
|
|
struct Left : Class6 { Pad4 _; };
|
|
struct Right : Class6 { Pad5 _; };
|
|
struct Main : Left, Right { Pad6 _; };
|
|
|
|
Main m;
|
|
Class1 *c1 = &m;
|
|
|
|
void test()
|
|
{
|
|
assert(dynamic_cast<Class1*>(c1) == static_cast<Class1*>(&m));
|
|
assert(dynamic_cast<Shared*>(c1) == static_cast<Shared*>(&m));
|
|
assert(dynamic_cast<Class6*>(c1) == 0);
|
|
assert(dynamic_cast<Left*>(c1) == static_cast<Left*>(&m));
|
|
assert(dynamic_cast<Right*>(c1) == static_cast<Right*>(&m));
|
|
assert(dynamic_cast<Main*>(c1) == static_cast<Main*>(&m));
|
|
}
|
|
|
|
} // t3
|
|
|
|
namespace t4
|
|
{
|
|
|
|
// PR33439
|
|
struct C2 { virtual ~C2() {} Pad1 _; };
|
|
struct C3 { virtual ~C3() {} Pad2 _; };
|
|
struct C4 : C3 { Pad3 _; };
|
|
struct C8 : C2, virtual C4 { Pad4 _; };
|
|
struct C9 : C4, C8 { Pad5 _; };
|
|
|
|
C9 c9;
|
|
C2 *c2 = &c9;
|
|
|
|
void test()
|
|
{
|
|
assert(dynamic_cast<C2*>(c2) == static_cast<C2*>(&c9));
|
|
assert(dynamic_cast<C3*>(c2) == 0);
|
|
assert(dynamic_cast<C4*>(c2) == 0);
|
|
assert(dynamic_cast<C8*>(c2) == static_cast<C8*>(&c9));
|
|
assert(dynamic_cast<C9*>(c2) == static_cast<C9*>(&c9));
|
|
}
|
|
|
|
} // t4
|
|
|
|
namespace t5
|
|
{
|
|
|
|
// PR33439
|
|
struct Dummy { virtual ~Dummy() {} Pad1 _; };
|
|
struct Src { virtual ~Src() {} Pad2 _; };
|
|
struct Dest : Dummy { Pad3 _; };
|
|
struct A1 : Dest { Pad4 _; };
|
|
struct A2 : Dest { Pad5 _; };
|
|
struct Root : Src, A1, A2 { Pad6 _; };
|
|
|
|
Root root;
|
|
Src *src = &root;
|
|
|
|
void test()
|
|
{
|
|
assert(dynamic_cast<Dummy*>(src) == 0);
|
|
assert(dynamic_cast<Src*>(src) == static_cast<Src*>(&root));
|
|
assert(dynamic_cast<Dest*>(src) == 0);
|
|
assert(dynamic_cast<A1*>(src) == static_cast<A1*>(&root));
|
|
assert(dynamic_cast<A2*>(src) == static_cast<A2*>(&root));
|
|
}
|
|
|
|
} // t5
|
|
|
|
int main(int, char**)
|
|
{
|
|
t1::test();
|
|
t2::test();
|
|
t3::test();
|
|
t4::test();
|
|
t5::test();
|
|
|
|
return 0;
|
|
}
|