title: Regarding struct initialization in c++
body: <p>I have Struct like these</p>
  
  <pre><code> typedef struct sample
   {
         double x,
         double y,
         double z
   }s1;
   s1 s;
  </code></pre>
  
  <p>will the content in s variable initialized or not?</p>
  
  <p>What will be the values of x,y,z?</p>
  
  <p>thanks</p>