[LLVMbugs] [Bug 6831] New: Spurious ambiguity error related to template parameter usage.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6831

           Summary: Spurious ambiguity error related to template parameter
                    usage.
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: zaffanella at cs.unipr.it
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com


For the following test program:

namespace NA { struct S; }
namespace NB { struct S; }

using namespace NA;
using namespace NB;

template <typename S> void foo();

clang++ reports the following error:

$ clang++ -fsyntax-only bug.cc
error: reference to 'S' is ambiguous
bug.cc:1:23: note: candidate found by name lookup is 'NA::S'
namespace NA { struct S; }
                      ^
bug.cc:2:23: note: candidate found by name lookup is 'NB::S'
namespace NB { struct S; }
                      ^
1 error generated.

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