GCC bug?

[niXman]

Hi,

The following code successfully compiles using Clang, but the error 
occurs when using GCC(4.9-6.0).
Who is right?

template<int N, typename... T>
void func(const char (&)[N], T &&...) {}
template<
      typename ConstCharPtr
     ,typename... T
     ,typename = typename std::enable_if<std::is_same<ConstCharPtr, const 
char*>::value>::type
> 
void func(ConstCharPtr, T &&...) {}


Errors:
prog.cc: In function 'int main()':
prog.cc:15:16: error: call of overloaded 'func(const char [2], int)' is 
ambiguous
      func("1", 1);
                 ^
prog.cc:4:6: note: candidate: void func(const char (&)[N], T&& ...) 
[with int N = 2; T = {int}]
  void func(const char (&)[N], T &&...) {}
       ^~~~
prog.cc:10:6: note: candidate: void func(ConstCharPtr, T&& ...) [with 
ConstCharPtr = const char*; T = {int}; <template-parameter-1-3> = void]
  void func(ConstCharPtr, T &&...) {}
       ^~~~