inline.cpp

// Implicitly "inline"d
constexpr int foo() {
  //...
}

// Implicitly "inline"d
template <class T>
int bar() {
  //...
}

class Foo {
 public:
  // Implicitly "inline"d
   int f() {
     // ...
   }
  // Implicitly "inline"d from C++17
  static constexpr std::string_view kMyBestString = "abacaba";
};