Untitled

Why does inlining template specializations help and should I do it?
template <typename foo>
void f(foo p)
{
  std::cout << "f one" << std::endl;
}

template <>
void f<int>(int p)
{
  std::cout << "f two" << std::endl;
}

templateordering.obj : error LNK2005: "void __cdecl f<int>(int)" (??$f@H@@YAXH@Z) already defined in othertu.obj

template <>
inline void f<int>(int p)
{
  std::cout << "f two" << std::endl;
}

template<> void f<int>(int p);

template <>
void f<int>(int p);

template <>
static void f<int>(int p)
{
  std::cout << "f two" << std::endl;
}