title: sscanf for doubles
body: <p>This is a simple problem, but I can't see it:</p>
  
  <pre>
    char *s = "f 8.649292" ;
    double d ;
    sscanf( s, "f %f", &d ) ;
  
    printf( "d is %f\n", d ) ;
  </pre>
  
  <p>Why is <code>d</code> not containing the double value <code>8.649292</code>?</p>