https://bugs.llvm.org/show_bug.cgi?id=38142
Bug ID: 38142
Summary: clang++ doesn't diagnose One Reference Rule violation
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: zhong...@pku.org.cn
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
The code is as follows:
template<typename>
struct X { };
struct B { };
struct A {
typedef X<int> X;
};
It is ill-formed but clang++ fails to diagnose
it: The name 'X' refers to different declarations in its
context and when re-evaluated in the completed scope of A.
g++ rejects the code:
1name-lookup2.C.cpp:7:19: error: declaration of 'typedef struct X<int> A::X'
[-fpermissive]
typedef X<int> X;
^
1name-lookup2.C.cpp:2:8: error: changes meaning of 'X' from 'struct X<int>'
[-fpermissive]
struct X { };
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