I've been trying to convert a hexadecimal number saved in a buffer to an unsigned int. However the "0x00" in front of every hexadecimal number that I'm reading from has been giving me problem, in essence the problem (in a downscaled version) looks like this:
char b[] = "0x0014A12";
std::stringstream ss;
unsigned int i;
ss << std::hex << b;
ss >> i;
cout << i << endl;
Any tips?
Note: The program outputs a high decimal nubmer which equals CCCCCC in hex.
This works fine for me:
#include <iostream>
#include <sstream>
int main(int argc, char* argv[])
{
using namespace std;
string b("0x0014A12");
stringstream ss;
ss << hex << b;
unsigned int dec;
ss >> dec;
cout << b << " = " << dec << endl;
return 0;
}
output:
0x0014A12 = 84498
The following works for me:
char b[] = "0x0014A12";
unsigned int i;
sscanf(b, "%X", &i);
我更喜欢sscanf来解决此类问题。
sscanf(b, "0x%x", &i);
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