Alternative to boost::lexical_cast

Question

I\'m taking a part in a challenge, and just to cut to the point, in one of places in my program I need to convert string to an integer. I\'ve tried boost::lexical_cast but u

Answer 1

If you really don't need to do any checks, the quickest way could be to convert the string yourself. I mean to code something like this:

int integer_from(string s)
{
  int n = 0;
  for (string::const_iterator it = s.begin(); it != s.end(); it++)
  {
    n = 10*n + (*it) - '0';
  }
  return n;
}