title: c++ pow(2,1000) is normaly to big for double, but it's working. why?
body: <p>the code:</p>
  
  <pre><code>#iclude &lt;math.h&gt;
  
  int main(){
  double somenumber = pow(2, 1000);
  printf("%lf\n", somenumber);
  return 0;
  }
  </code></pre>
  
  <p>i get this huge number:
  10715086071862673209484250490600018105614048117055336074437503883703510511249361224931983788156958581275946729175531468251871452856923140435984577574698574803934567774824230985421074605062371141877954182153046474983581941267398767559165543946077062914571196477686542167660429831652624386837205668069376</p>
  
  <p>This is obviously to big for double. How it's working?</p>