title: What is the equivalent of unsigned long int in c#?
body: <p>I have a C struct that is defined as follows:</p>
  
  <pre><code>typedef struct {
  
      unsigned long int a;
  
  } TEST;
  </code></pre>
  
  <p>I want to create a C# equivalent of this struct?</p>
  
  <p>Any help? What is confusing me is that "unsigned long int" is <em>at least 32-bit</em>, what does that mean, it's either 32-bit, 64-bit or 16-bit, right?</p>