half
#define half C[2].d
#define half C[1]
#define half C[1]
#define half xxx[1]
#define half C[0]
#define half C[5]
#define half C[2]
#define half C[0]
#define half C[0]
#define half C[4]
#define half C[10]
#define half C[10]
#define half C[10]
#define half C[12]
#define half C[0].d
#define half C[0].d
#define half C[0].d
#define half c[2]
#define half c[2]
#define half c[3]