No way to print out the full composition of a material to screen

[dean-krueger]

There are some times where it might be nice from a user perspective to be able to get a string with the normalized composition of a material in it (to print, or to use otherwise). Currently, Cyclus can write this out to a file, but there's no way to do it on screen or use it as a variable. I wrote my own version of a function that does this, which I will include below to further illustrate what I mean.

std::string Reactor::GetComp(cyclus::Material::Ptr mat) {
  std::string comp = "{";
  cyclus::CompMap c = mat->comp()->atom();
  cyclus::compmath::Normalize(&c, 1);
  for (std::map<const int, double>::const_iterator it = c.begin();
       it != c.end(); ++it) {
    comp = comp + std::string("{") + std::to_string(it->first) +
           std::string(",") + std::to_string(it->second) + std::string("},");
  }
  comp.pop_back();
  comp = comp + std::string("}");
  return comp;
}