3 ms·

Why?

• mhh__ 6y ago
  C++ didn't have variadic templates so passing along a stream with an operator was more ergonomic enough and typesafe.
  • edflsafoiewq 6y ago
    I suppose you're comparing against std::format, but the question is why overloading an operator (cout << "foo") would have been necessary vs a regular member function (cout.put("foo")).
    • mhh__ 6y ago
      Because it had to replace people using a comma inside printf. The member function could only accept one argument cleanly so you would've to chain them like cout.put.put.put