[LLVMbugs] [Bug 19566] New: gcc-4.9 happy, but clang error: no template named 'B_'; did you mean 'X::B_'

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19566

            Bug ID: 19566
           Summary: gcc-4.9 happy, but clang error: no template named
                    'B_'; did you mean 'X::B_'
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: mcrosier at codeaurora.org
                CC: apazos at codeaurora.org, dgregor at apple.com,
                    llvmbugs at cs.uiuc.edu, mcrosier at codeaurora.org,
                    richard-llvm at metafoo.co.uk
    Classification: Unclassified

Clang produces and error for the following test case:

struct X {
  template<class T> struct B_ { T x; };
};
template<class T>
int foo(typename X::B_<T>) { return (&X::operator B_<T> ); }


$ clang-arm64-x++ -S foo.ii -w -o -
foo.ii:6:51: error: no template named 'B_'; did you mean 'X::B_'?
int foo(typename X::B_<T>) { return (&X::operator B_<T> ); }
                                                  ^~
X::B_                                                                           
foo.ii:3:28: note: 'X::B_' declared here

  template<class T> struct B_ { T x; };
                           ^
1 error generated.

However, the latest gcc-4.9 happily accepts this..  Richard? :D

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