title: Is it ok to use 64bit integers in a 32bit application?
body: <p>I notice in C and C++, we can use <code>int64_t</code>, or simply a <code>long long</code>.</p>
  
  <p>If I compile <em>32bit code</em> using these types, will I suffer any performance issues on <em>64bit</em> and/or <em>32bit machines</em>?</p>
  
  <p>Aside from saving some RAM, would I ever have a reason to just use <code>int</code>?<br>
  After all, 64bit ints are far more useful in storing large numbers.</p>