Should I compare a std::string to “string” or “string”s?

Question

Consider this code snippet:

bool foo(const std::string& s) {
    return s == \"hello\"; // comparing against a const char* literal
}

bool bar(const std::str         


        

Answer 1

No, compare() does not require construction of a std::string for const char* operands.

You're using overload #4 here.

The comparison to string literal is the "free" version you're looking for. Instantiating a std::string here is completely unnecessary.