C ++從字符串化字節轉換字節數組

Question

我有一個非常大的字符串，如下所示：

std :: string tmpString =“0xC7,0x04,0x33,0xC0,0x49,0x74,0x0A，...”

我想將每個字符串化的字節轉換回一個字節數組。 什么是這種情況的最佳解決方案？

我正在使用VC ++

Answer 1

嘗試這個：

std::string tmpString = "0xC7,0x04,0x33,0xC0,0x49,0x74,0x0A,...";
...
std::vector<BYTE> bytes;
bytes.reserve((tmpString.length() / 5) + 1);
std::istringstream iss(tmpString);
std::string s;
while (std::getline(iss, s, ',')) {
    WORD num; // istreamstream does not have an '>>' operator for bytes
    std::istringstream(s) >> std::hex >> num;
    bytes.push_back(BYTE(num));
}

Answer 2

std::string str = ("0xC7,0x04,0x33,0xC0,0x49,0x74,0x0A");
char *p2str = str.c_str();
std::vector<BYTE> numVect;
char *p2c;
do
   int num = strtol(p2str,&p2c,16);
   p2str = p2c + 1; // skiping the ,
   numVect.push_back(BYTE(num));
while(*p2c);