#ifndef READ_NUMBER_HPP_
#define READ_NUMBER_HPP_

#include <string>
#include <iostream>
#include <limits>

template <typename T>
void readNumber(std::wstring err_msg, T & number)
{
    while(true)
    {
        while(!(std::wcin >> number))
        {
            std::wcout << number << std::endl;
            std::wcout << err_msg << std::endl;
            std::wcin.clear();
            std::wcin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
        }
        if(number > 0)
        {
            std::wcin.clear();
            std::wcin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
            break;
        }
        std::wcout << err_msg << std::endl;
    }
}

#endif //READ_NUMBER_HPP_