以下代码:
  
  #include <array>
template <int i>
auto f(){}
int main () {
    std::array{f<5>};
}
  
   编译clang 7.0,但在GCC 8.2中失败,并显示消息
  
  prog.cc: In function 'int main()':
prog.cc:7:20: error: class template argument deduction failed:
     std::array{f<5>};
                    ^
prog.cc:7:20: error: no matching function for call to 'array(<unresolved overloaded function type>)'
In file included from prog.cc:1:
/opt/wandbox/gcc-8.2.0/include/c++/8.2.0/array:244:5: note: candidate: 'template<class _Tp, class ... _Up> std::array(_Tp, _Up ...)-> std::array<typename std::enable_if<(is_same_v<_Tp, _Up> && ...), _Tp>::type, (1 + sizeof... (_Up))>'
     array(_Tp, _Up...)
     ^~~~~
/opt/wandbox/gcc-8.2.0/include/c++/8.2.0/array:244:5: note:   template argument deduction/substitution failed:
prog.cc:7:20: note:   couldn't deduce template parameter '_Tp'
     std::array{f<5>};
                    ^
In file included from prog.cc:1:
/opt/wandbox/gcc-8.2.0/include/c++/8.2.0/array:94:12: note: candidate: 'template<class _Tp, long unsigned int _Nm> array(std::array<_Tp, _Nm>)-> std::array<_Tp, _Nm>'
     struct array
            ^~~~~
/opt/wandbox/gcc-8.2.0/include/c++/8.2.0/array:94:12: note:   template argument deduction/substitution failed:
prog.cc:7:20: note:   couldn't deduce template parameter '_Tp'
     std::array{f<5>};
                ^
  
   此代码合法吗?如果没有,我该如何修复?