title: Round() in-built function does not work for Turbo C++ v4.0
body: <p>This round() is not under math.h header. How to make it work?</p>
  
  <pre><code>#include&lt;stdio.h&gt;
  #include&lt;conio.h&gt;
  #include&lt;math.h&gt;
  void main()
  {
  float i=5.4;
  printf("%f\t%f",i,round(i));
  getch();
  }
  </code></pre>