[LLVMbugs] [Bug 21020] New: Clang 3.5 incorrect error: declaration of reference variable requires an initializer

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21020

            Bug ID: 21020
           Summary: Clang 3.5 incorrect error: declaration of reference
                    variable requires an initializer
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: wtt6 at cornell.edu
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

See code and output below.  The code is accepted as is by clang 3.4.  Clang 3.5
accepts it if either commented line is substituted for its preceeding line or
if the function g() is made non-templated.


$ cat test.cpp 
struct foo { foo(int) {} };
//typedef char foo;

template <class>
void g()
{
  int x;
  const foo& y(x);
  //const foo& y = x;
}

void f() {
  g<int>();
}
$ clang+llvm-3.5.0-x86_64-linux-gnu/bin/clang++ -fsyntax-only test.cpp 
test.cpp:8:14: error: declaration of reference variable 'y' requires an
      initializer
  const foo& y(x);
             ^
test.cpp:13:3: note: in instantiation of function template specialization
      'g<int>' requested here
  g<int>();
  ^
1 error generated.

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