b6030b9dbf
Summary:
I accidentally implemented the 4.11 [conv.mem] conversions for libc++abi in a recent patch. @majnemer pointed out that 5.13 [except.handle] only allows the pointer conversions in 4.10 and not those is 4.11. This patch no longer allows the following example code:
```c++
struct A {};
struct B : public A {};
int main() {
try {
throw (int A::*)0;
} catch (int B::*) {
// exception caught here.
}
}
```
Reviewers: mclow.lists, jroelofs, majnemer
Reviewed By: majnemer
Subscribers: majnemer, cfe-commits
Differential Revision: http://reviews.llvm.org/D8845
llvm-svn: 234254
172 lines
2.3 KiB
C++
172 lines
2.3 KiB
C++
//===----------------- catch_member_data_pointer_01.cpp -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <cassert>
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struct A
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{
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const int i;
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int j;
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};
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typedef const int A::*md1;
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typedef int A::*md2;
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struct B : public A
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{
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const int k;
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int l;
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};
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typedef const int B::*der1;
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typedef int B::*der2;
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void test1()
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{
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try
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{
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throw &A::i;
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assert(false);
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}
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catch (md2)
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{
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assert(false);
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}
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catch (md1)
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{
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}
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}
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// Check that cv qualified conversions are allowed.
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void test2()
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{
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try
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{
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throw &A::j;
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}
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catch (md2)
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{
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}
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catch (...)
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{
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assert(false);
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}
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try
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{
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throw &A::j;
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assert(false);
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}
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catch (md1)
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{
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}
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catch (...)
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{
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assert(false);
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}
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}
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// Check that Base -> Derived conversions are NOT allowed.
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void test3()
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{
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try
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{
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throw &A::i;
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assert(false);
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}
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catch (md2)
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{
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assert(false);
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}
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catch (der2)
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{
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assert(false);
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}
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catch (der1)
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{
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assert(false);
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}
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catch (md1)
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{
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}
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}
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// Check that Base -> Derived conversions NOT are allowed with different cv
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// qualifiers.
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void test4()
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{
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try
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{
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throw &A::j;
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assert(false);
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}
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catch (der2)
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{
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assert(false);
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}
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catch (der1)
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{
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assert(false);
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}
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catch (md2)
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{
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}
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catch (...)
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{
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assert(false);
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}
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}
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// Check that no Derived -> Base conversions are allowed.
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void test5()
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{
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try
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{
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throw &B::k;
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assert(false);
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}
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catch (md1)
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{
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assert(false);
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}
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catch (md2)
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{
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assert(false);
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}
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catch (der1)
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{
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}
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try
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{
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throw &B::l;
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assert(false);
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}
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catch (md1)
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{
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assert(false);
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}
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catch (md2)
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{
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assert(false);
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}
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catch (der2)
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{
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}
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}
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int main()
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{
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test1();
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test2();
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test3();
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test4();
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test5();
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}
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