Fill space with ? : hexadecimal « Data Types « C++ Tutorial

1. C++ Tutorial
2. Data Types
3. hexadecimal

#include <iostream>
#include <iomanip>
using namespace std; 

int main(void){
   cout << hex << 100 << endl;
   cout << setfill('?') << setw(10) << 2343.10 << endl;
 }