title: long long int compilation error in vc++ 6.0
body: <p>I'm encountering this error while compiling some old VC++ 6.0 source code.</p>
  
  <pre><code>error C2632: 'long' followed by 'long' is illegal
  </code></pre>
  
  <p>There's a part of the code that declares a long long int variable which caused the error. Does anybody know how I can fix this error compiling it in VC++ 6.0? I've searched around and I've read that this data type is not yet supported in this version. However, this is an old code and I'm sure this was compiled in VC++ 6.0.</p>