Outputting the binary code for a letter. - C++ Data Type

C++ examples for Data Type:Binary

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Description

Outputting the binary code for a letter.

Demo Code

#include <iostream>
#include <cctype>

using std::cin;/*from w  ww. j a v a  2s.  c  o  m*/
using std::cout;
using std::endl;

int main() {
  char ch = 0;
  cout << "Enter a letter: ";
  cin >> ch;

  if(!std::isalpha(ch)) {
    cout << "That's not a letter!" << endl;
    return 1;
  }

  // Determine upper or lower case.
  cout << "\'" << ch << "\' is " << (std::islower(ch) ? "lowercase.":"uppercase.") << endl;

  // Determine whether it is a vowel or a consonant.
  cout << "\'" << ch << "\' is a ";
  switch(std::tolower(ch)) {
    case 'a': case 'e': case 'i': case 'o': case 'u':
      cout << "vowel.";
      break;
    default:
      cout << "consonant.";
      break;
  }

  // Output the character code as binary
  cout << endl << "The binary code for \'" << ch << "\' is "
       << ((ch & 0x80) ? 1 : 0) << ((ch & 0x40) ? 1 : 0)
       << ((ch & 0x20) ? 1 : 0) << ((ch & 0x10) ? 1 : 0)
       << ((ch & 0x08) ? 1 : 0) << ((ch & 0x04) ? 1 : 0)
       << ((ch & 0x02) ? 1 : 0) << ((ch & 0x01) ? 1 : 0)
       << endl;

  return 0;
}

Result


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