从字符串中读取十六进制值并将它们存储到 c/c++ 中的整数数组中

Question

I want to ask that how can I store hex values from a string into an integer array. eg coverting

String sbox_str= "0x65, 0xea, 0xaf, 0x37, 0xff, 0x3b, 0xc2, 0xd0";

into

uint8_t sbox[8]={0x65, 0xea, 0xaf, 0x37, 0xff, 0x3b, 0xc2, 0xd0};

I will really appreciate if you guide me about how can i do the same thing in QT Creator.

Answer 1

Easy way using QString:

std::string sbox_str= "0x65, 0xea, 0xaf, 0x37, 0xff, 0x3b, 0xc2, 0xd0";
uint8_t sbox[8];

int i = 0;
for( const auto &item: QString(sbox_str.data()).split(", ")) {
    if(i == sizeof (sbox)) break; // do something
    sbox[i] = item.toInt(nullptr, 16);
    ++i;
}