title: converting _int64 to a string
body: <p>I had a question when providing an API </p>
  
  <p>if I ask for them to give me a <code>_int64</code> 10 digit hexadecimal number but my function internally takes strings how do I effectively convert that...</p>
  
  <p>as of right now I was just using string internally but for compatibility reasons i was using <code>char*</code> c style so that give any system 32 or 64 it wouldn't matter. Is that the accurate thing to do? or am i wrong? </p>
  
  <p>is there a problem using <code>char*</code> vs <code>_int64</code>? </p>