simple-cpp-game-study/PPP3/ex01.cpp

#include <iostream>

using namespace std;

int main()
{
  constexpr double pi = 3.14159;
  double d = 0;
  while(cin >> d) {
    int i = d;
    char c = i;
    cout << "d==" << d
      << " i==" << i
      << " c==" << c
      << " char(" << c << ")\n";
  }
}