1b00fc5d81
Summary: Currently there are bugs in out detection of multi-level pointer conversions and pointer to member conversions. This patch fixes the following issues. * Allow multi-level pointers with different nested qualifiers. * Allow multi-level mixed pointers to objects and pointers to members with different nested qualifiers. * Allow conversions from `int Base::*` to `int Derived::*` but only for non-nested pointers. There is still some work that needs to be done to clean this patch up but I want to get some input on it. Open questions: * Does `__pointer_to_member_type_info::can_catch(...)` need to adjust the pointer if a base to derived conversion is performed? Reviewers: danalbert, compnerd, mclow.lists Reviewed By: mclow.lists Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D8758 llvm-svn: 233984
94 lines
1.3 KiB
C++
94 lines
1.3 KiB
C++
//===--------------------- catch_pointer_nullptr.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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#include <cstdlib>
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#ifndef __has_feature
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#define __has_feature(x) 0
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#endif
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struct A {};
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#if __has_feature(cxx_nullptr)
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void test1()
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{
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try
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{
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throw nullptr;
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assert(false);
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}
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catch (int*)
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{
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}
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catch (long*)
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{
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assert(false);
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}
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}
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void test2()
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{
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try
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{
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throw nullptr;
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assert(false);
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}
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catch (A*)
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{
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}
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catch (int*)
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{
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assert(false);
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}
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}
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template <class Catch>
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void catch_nullptr_test() {
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try {
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throw nullptr;
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assert(false);
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} catch (Catch) {
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// nothing todo
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} catch (...) {
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assert(false);
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}
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}
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#else
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void test1()
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{
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}
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void test2()
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{
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}
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template <class Catch>
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void catch_nullptr_test()
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{
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}
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#endif
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int main()
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{
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// catch naked nullptrs
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test1();
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test2();
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catch_nullptr_test<int*>();
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catch_nullptr_test<int**>();
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catch_nullptr_test<int A::*>();
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catch_nullptr_test<const int A::*>();
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catch_nullptr_test<int A::**>();
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}
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