1  #include <complex.h>
       2  
       3  struct st
       4  {
       5    int s1;
       6    float complex x;
       7    int s2;
       8  };
       9  
      10  typedef struct { float r, i; } _complex;
      11  
      12  struct stc
      13  {
      14    int s1;
      15    _complex x;
      16    int s2;
      17  };