Casting to and from strings.

util.hpp

#pragma once

#include <iostream>
#include <sstream>
#include <string>

template<typename T>
  T string_to(const std::string& p_string) {
    std::istringstream iss(p_string);
    T x;
    iss >> x;
    return x;
  }

template<typename T>
  std::string to_string(const T& p_val) {
    std::ostringstream oss;
    oss << p_val;
    return oss.str();
  }