https://llvm.org/bugs/show_bug.cgi?id=28195
Bug ID: 28195
Summary: Clang allows ambiguous derived-to-base pointer
conversion.
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: e...@efcs.ca
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
For example:
#include <cassert>
template <int N> struct Base { };
struct Der : Base<1>, Base<2> {};
template <int N> bool found_base(const Base<N>*) { return true; }
bool found_base(...) { return false; }
int main() { const Der d; assert(found_base(&d) == false); }
In the above example Clang selects the conversion to const Base<2>*.
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