title: How can identify a blank line in C++?
body: <p>I'm reading in information from a file. I need a counter that counts how many text filled lines there are. I need that counter to stop if there is any blank line (even if there are text filled lines after that blank line).</p>
  
  <p>How would I do this? Because I'm not exactly sure how to identify a blank line to stop the counter there.</p>