AskUserForDouble is a std::string code snippet to ask the user for a single-line input (which is then converted to double).

View the code of 'AskUserForDouble' in plain text




#include <iostream>

#include <string>

#include <boost/lexical_cast.hpp>



//From http://www.richelbilderbeek.nl/CppAskUserForDouble.htm

const double AskUserForDouble()

{

  while (1)

  {

    const std::string s = AskUserForString();

    if (!IsDouble(s)) continue;

    return boost::lexical_cast<double>(s);

  }

}

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(C++) AskUserForDouble