如何在C ++中打印tchar

Question

I am trying to print UCHAR btMACAddress[INTEL_MAC_ADDR_LENGTH] in c++.

cout<<"adapter MAC address="<<padapter->btMACAddress<<endl;

IT SHOWING NULL IS ABOVE

In ci am able to print.

printf("adapter macaddress  %02x:%02x:%02x:%02x:%02x:%02x \n",
       pAdapter->adapter[0].btMACAddress[0],
       pAdapter->adapter[0].btMACAddress[1],
       pAdapter->adapter[0].btMACAddress[2],
       pAdapter->adapter[0].btMACAddress[3],
       pAdapter->adapter[0].btMACAddress[4],
       pAdapter->adapter[0].btMACAddress[5]);

Answer 1

As Joachim pointed out, you can use stream manipulators to control formatting of printed values.

Required headers file:

#include <ios>
#include <iomanip>
#include <iostream>

using namespace std;

Code to print the MAC address:

cout << "adapter macaddress ";
for (int i=0; i<INTEL_MAC_ADDR_LENGTH; i++)
{
    if (i > 0) cout << ':';
    cout << hex << setw(2) << setfill('0') 
         << (unsigned int) pAdapter->adapter[0].btMACAddress[i];
}
cout << endl;

Answer 2

for (int i = 0; i < 6; ++i)
{
     cout << pAdapter->adapter[0].btMACAddress[i];
}
cout << endl;

Also this has nothing to do with printing bytes but with your inability to use cout properly.