modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/990107-1.c (about)

     1  static int
     2  java_double_finite (d)
     3       double  d;
     4  {
     5    long long  *ip = (long long  *) &d;
     6    return (*ip & 0x7ff0000000000000LL ) != 0x7ff0000000000000LL ;
     7  }