Answer to Question #283426 in C++ for Rudy

Question

Write a code which demonstrates the use of hex,oct,dec manipulators

Answer 1

#include <iostream>
#include <sstream>
#include <bitset>
using namespace std;
int main()
{
    cout << "The number 42 in octal:   " << oct << 42 << '\n'
              << "The number 42 in decimal: " << dec << 42 << '\n'
              << "The number 42 in hex:     " << hex << 42 << '\n';
    int n;
    istringstream("2A") >> hex >> n;
    cout << dec << "Parsing \"2A\" as hex gives " << n << '\n';
  
    cout << hex << "42 as hex gives " << 42
        << " and 21 as hex gives " << 21 << '\n';

   
    cout << "The number 42 in binary:  " << bitset<8>{42} << '\n';
}