function help

[i8bjz8AR]

So i need to create a member function to return the length of a string. it needs to return a std::size_t value. and the size() function should not change the object.

I'm compiling with g++ in the terminal so how would i do this in a .cpp and .hpp file? would it look something like this? really confused on this function.

size_t length() const noexcept;

[coder777]

What is so confusing?

If it returns just one value you may make it inline:

size_t length() const noexcept
{
  return my_length;
}