[LLVMbugs] [Bug 20259] New: Friend lookup works differently in ms mode

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Jul 9 11:24:20 PDT 2014


            Bug ID: 20259
           Summary: Friend lookup works differently in ms mode
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


class FriendClass;
namespace inner {
template <typename T> class Cont {
  friend class FriendClass;

  explicit Cont(T s) throw() {}
class FriendClass {
  typedef inner::Cont<int> C;

  static C foo() throw() { return C(0); }

cl.exe builds this fine. Clang complains

hummer:clang thakis$ ~/src/llvm-build/bin/clang-cl  /c test.cc
test.cc(15,35) :  error: calling a protected constructor of class
  static C foo() throw() { return C(0); }
test.cc(8,12) :  note: declared protected here
  explicit Cont(T s) throw() {}
1 error generated.

The friend apparently does an unqualified lookup in cl apparently. (This is
reduced from a wrl header used in chromium)

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