title: Increment of character in C
body: <pre><code>#include &lt;stdio.h&gt;
  #include &lt;stdlib.h&gt;
  
  int main()
  {
      int count=0;
      char c=127;
  
      do
        count++;
      while(c++);
      printf("count=%d ",count);
      return 0;
  }
  </code></pre>
  
  <p>Can anybody explain to me why after the first loop, the value of c will become to -128?</p>