init-1.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

typedef struct
{
  char *key;
  char *value;
} T1;

typedef struct
{
  long type;
  char *value;
} T3;

T1 a[] =
{
  {
    "",
    ((char *)&((T3) {1, (char *) 1}))
  }
};