整型字面量的不同基数表示C++版

源码来自《C++ Primer Plus》，有微小改动，运行于64位win10

#include <iostream>

using namespace std;

int main() {
    int chest = 42;
    int waist = 0x42;
    int inseam = 042;

    cout << "Monsieur cuts a striking figure!\n";
    cout << "Chest = " << chest << " (42 in decimal)\n";
    cout << "Waist = " << waist << " (0x42 in hex)\n";
    cout << "Inseam = " << inseam << " (042 in octal)\n";

    cout << endl;

    cout << "Monsieur cuts a striking figure again!\n";
    cout << "Chest = " << chest << " (decimal for 42)\n";
    cout << hex;
    cout << "Waist = " << waist << " (hexadecimal for 42)\n";
    cout << oct;
    cout << "Inseam = " << inseam << " (octal for 42)\n";

    return 0;
}

Output:

Monsieur cuts a striking figure!
Chest = 42 (42 in decimal)
Waist = 66 (0x42 in hex)
Inseam = 34 (042 in octal)

Monsieur cuts a striking figure again!
Chest = 42 (decimal for 42)
Waist = 42 (hexadecimal for 42)
Inseam = 42 (octal for 42)