Question

I’ve written a class Tag that holds tags as strings and allows operations to be done on it. For ease of use I’m overloading the operator= for string-like types. What I’ve got so far:

Tag& Tag::operator=(const std::string& rhs)
{
    setTag(rhs);
    return *this;
}

Tag& Tag::operator=(const char* rhs)
{
     setTag(rhs);
     return *this;
}

(where setTag() is overloaded for std::string and char). Most of the usage is covered by this:

 Tag tag1 = std::string("lala");
 Tag tag2;
 tag2 = std::string("lala2");
 Tag tag3;
 tag3 = "lala";

however, the most ‘fundamental’ one does not compute:

 Tag tag4 = "lala";

It gives me this error:

 conversion from 'const char [5]' to non-scalar type 'Tag' requested

How can I fix this? What am I doing wrong?

Answer 1

That last one isn’t an operator=() – you need a constructor that takes a char const*.

Tag(char const* s);