Convert a string to Binary & hexadecimal value

char str[] = "Test string";

// Binary
for(int i = 0; i < strlen(str); ++i)
{
  for(int k = 7; k >= 0; ++k)
    cout << ((str[i] >> k) & 1);

  cout << " ";
}
cout << endl;

// Hex
cout << setf(iob_base::hex) << str << endl;

neitod,

Sorry... just early morning code :)  And yes, the strlen does add unneeded complexity to a otherwise simple function.  I thought that the

As for Bermuda, if you are using MFC you probably don't have a console window anyhow.  In that case you would need code that generates a string (or something similar) and passes it back to a function to be output in a message box or to set some window text to.  Nietod's code will work for this, and should be fairly easy to add to you app.

Here are some nrealy fully tested and debuged functions, i used them myself for a converted program. But i did have to remove some logic that prevented it from converting '\r' and '\n'. Thou it uses sprintf so it will required stdio.h.

they both return a newly allocated string and free the supplied one (thou thats easy to change). so you can do whatever needs doing with the returned string

char *StrToHexStr(char *str) {
    char *newstr = new char[(strlen(str)*2)+1];
    char *cpold  = str;
    char *cpnew  = newstr;

    while('\0' != *cpold) {
            sprintf(cpnew, "%02X", (char)(*cpold++));
            cpnew+=2;
    }
    *(cpnew) = '\0';

    delete [] str;
    return(newstr);
}

char *StrToBinStr(char *str) {
    char *newstr = new[strlen(str)*8)+1];
    char *cpold  = str;
    char *cpnew  = newstr;
   
    while('\0' != *cpold) {
            char mask = (char)0x80;
            int  i;
           
            for( i = 0; i < 8; i++) {
                if((*cpold & mask) == 0) {
                    *(cpnew++) = '0';
                } else {
                    *(cpnew++) = '1';
                }

                mask = mask >> 1;

                //the right shift isn't always defined
                //so we must make sure the new MSB is 0 ourselves
                mask = mask & 0x7F;
            }
            cpold++;
    }
    *(cpnew) = '\0';

    delete [] str;
    return(newstr);

}