C++ Program to convert hex string to signed integer

converting hex to decimal in C++

#include <sstream>
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    unsigned int x;   
    std::stringstream ss;
    ss << std::hex << "fffefffe";
    ss >> x;
    // output it as a signed type
    std::cout << static_cast<int>(x) << std::endl;
 system("pause");
    return 0;
}

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