如何初始化Typedef结构指针

Question

I need to initialize a typedef struct pointer

in header file,

typedef struct {
    DWORD RxBuf[4];             
    DWORD Tr0c;                 
} t, *p_t;

In the cpp file,

static p_t p1
    = {
    {0x00,0x00,0x00,0x00},  
    0               
};

Answer 1

Just a guess, I believe you want to do:

static t tNull
    = {
    {0x00,0x00,0x00,0x00},  
    0               
};

static p_t p1 = &tNull;

Answer 2

p_t is a pointer, therefore you have to point it to a valid object of type t .

You can make the object and point to it:

t var = { { 1 , 2 , 3 , 4 } , 5  } ;
p_t pointer = &var ;

Or use a compound literal:

p_t pointer = &( t ){ { 1 , 2 , 3 , 4 } , 5  } ;