如何使用无符号字符分配#define

Question

I want to know can assign #define with unsigned char ??if can how??

for example:

 #define ACCESS_PSS {0x32,0xFD,0x6E,0x2D}


    int main(){
    unsigned char ResponseData[100];
    for (int i = 0; i <4;i++0){

                    if (ResponseData[i+5]==ACCESS_PSS){ //how to do this???
                                cout<<5<<endl;
                                              }

ResponseData from programm get value and byte 5 ta 8 is equal with ACCESS_PSS

Answer 1

Best way:

const uint8_t ACCESS_PSS [4] = {0x32,0xFD,0x6E,0x2D};

if(memcmp(&ResponseData[i+5], ACCESS_PSS, 4) == 0)

Alternative way (compound literal):

if(memcmp(&ResponseData[i+5], (uint8_t[4]){0x32,0xFD,0x6E,0x2D}, 4) == 0)