Display Integer Type Information Standard C++ Compilers.

Το παρακάτω πρόγραμμα εμφανίζει στην οθόνη τα όρια των ακέραιων τύπων στην C++:

#include <iostream>
#include <climits>

using namespace std;

volatile int char_min = CHAR_MIN;

int main(void) {
  cout << "Size of boolean type is " << sizeof(bool)
       << " byte(s)" << "\n\n";

  cout << "Number of bits in a character: "
         << CHAR_BIT << '\n';
  cout << "Size of character types is "
         << sizeof(char)
       << " byte" << '\n';
  cout << "Signed char min: "
         << SCHAR_MIN << " max: "
         << SCHAR_MAX << '\n';
  cout << "Unsigned char min: 0 max: "
         << UCHAR_MAX << '\n';

  cout << "Default char is ";

  if (char_min < 0)
      cout << "signed";
  else if (char_min == 0)
      cout << "unsigned";
  else
        cout << "non-standard";
  cout << "\n\n";

  cout << "Size of short int types is "
         << sizeof(short) << " bytes"
         << '\n';
  cout << "Signed short min: "
         << SHRT_MIN << " max: "
         << SHRT_MAX << '\n';
  cout << "Unsigned short min: 0 max: "
         << USHRT_MAX << "\n\n";

  cout << "Size of int types is "
         << sizeof(int) << " bytes"
         << '\n';
  cout << "Signed int min: "
         << INT_MIN << " max: "
         << INT_MAX << '\n';
  cout << "Unsigned int min: 0 max: "
         << UINT_MAX << "\n\n";

  cout << "Size of long int types is "
         << sizeof(long) << " bytes"
         << '\n';
  cout << "Signed long min: "
       << LONG_MIN << " max: "
         << LONG_MAX << '\n';
  cout << "Unsigned long min: 0 max: "
         << ULONG_MAX << endl;

  getchar();
  return 0;
}

Η εκτέλεση του παραπάνω προγράμματος στο Visual Studio .NET 2005 βγάζει τα παρακάτω αποτελέσματα:

Size of boolean type is 1 byte(s)

Number of bits in a character: 8
Size of character types is 1 byte
Signed char min: -128 max: 127
Unsigned char min: 0 max: 255
Default char is signed

Size of short int types is 2 bytes
Signed short min: -32768 max: 32767
Unsigned short min: 0 max: 65535

Size of int types is 4 bytes
Signed int min: -2147483648 max: 2147483647
Unsigned int min: 0 max: 4294967295

Size of long int types is 4 bytes
Signed long min: -2147483648 max: 2147483647
Unsigned long min: 0 max: 4294967295