Function default_error_message

src/utils/exception.cpp:34–42

namespace lbann {

static std::string default_error_message()
{
  std::ostringstream oss("LBANN exception", std::ios_base::ate);
  const auto rank = get_rank_in_world();
  if (rank >= 0) {
    oss << " on rank " << rank;
  }
  return oss.str();
}

exception::exception() : exception(default_error_message()) {}