David Abrahams wrote:
on Mon Apr 27 2009, Sohail Somani <sohail-AT-taggedtype.net> wrote:
There is an implementation of a mpl::string by Eric Neibler somewhere.
well, that's an interesting point. The string itself wouldn't even appear in the data segment. Cool.
Below is the definition of a std_str() function that takes an mpl::string and turns it into a std::string. (boost/mpl/string.hpp is available on trunk, but hasn't been released yet.) It's not *very* obfuscated, but should be enough to fool a naive string-dump. #include <string> #include <iostream> #include <boost/mpl/string.hpp> #include <boost/mpl/for_each.hpp> using namespace boost; struct push_back_str { push_back_str(std::string & s) : str(s) {} void operator()(char c) const { this->str.push_back(c); } private: std::string & str; }; template<typename String> std::string std_str() { std::string result; result.reserve(mpl::size<String>()); mpl::for_each<String>(push_back_str(result)); return result; } int main() { std::cout << std_str< mpl::string<'hell','o wo','rld!'> >() << std::endl; return 0; } HTH, -- Eric Niebler BoostPro Computing http://www.boostpro.com