Question

Supposing stringstream contains James is 4 , I can write something like getline (stream, stringjames, ' ') to get the individual words, but is there any way to know that I’ve hit the end of the line?

Bonus Question!
Case 1: James is 4
Case 2: James is four

If I were iterating through the words in a stringstream, and I expect to receive an int val of 4, but instead I received a string, what would be the best way to check this?

Answer 1

You check the return value to see if it evaluates true or false:

if (getline(stream, stringjames, ' '))
    // do stuff
else
    // fail

As for the “bonus question” you can also do the same thing when extracting ints and things from streams. The return value of operator>> will evaluate to true if the read was successful, and false if there was an error (such as there being letters instead of numbers):

int intval;

if (stream >> intval)
    // int read, process
else if (stream.eof())
    // end-of-stream reached
else
    // int failed to read but there is still stuff left in the stream